rainbutterfly/cve_corpus huggingface dataset:
CVE-2026-27446 Apache Artemis, Apache ActiveMQ Artemis: Auth bypass for Core downstream federation
Missing Authentication for Critical Function (CWE-306) vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This could potentially result in message injection into any queue and/or message exfiltration from any queue via the rogue broker. This impacts environments that allow both:

- incoming Core protocol connections from untrusted sources to the broker

- outgoing Core protocol connections from the broker to untrusted targets

This issue affects:

- Apache Artemis from 2.50.0 through 2.51.0

- Apache ActiveMQ Artemis from 2.11.0 through 2.44.0.

Users are recommended to upgrade to Apache Artemis version 2.52.0, which fixes the issue.

The issue can be mitigated by one of the following:

- Remove Core protocol support from any acceptor receiving connections from untrusted sources. Incoming Core protocol connections are supported by default via the "artemis" acceptor listening on port 61616. See the "protocols" URL parameter configured for the acceptor. An acceptor URL without this parameter supports all protocols by default, including Core.

- Use two-way SSL (i.e. certificate-based authentication) in order to force every client to present the proper SSL certificate when establishing a connection before any message protocol handshake is attempted. This will prevent unauthenticated exploitation of this vulnerability.

- Implement and deploy a Core interceptor to deny all Core downstream federation connect packets. Such packets have a type of (int) -16 or (byte) 0xfffffff0. Documentation for interceptors is available at  https://artemis.apache.org/components/artemis/documentation/latest/intercepting-operations.html .
Problem types: cwe_id: CWE-306
description: CWE-306 Missing Authentication for Critical Function
Affected products: vendor: Apache Software Foundation
product: Apache Artemis
default_status: unaffected
vendor: Apache Software Foundation
product: Apache ActiveMQ Artemis
default_status: unaffected
Credits: lang: en
value: Hardik Mehta <mehtahardik@proton.me>
Published: 2026-03-04T08:48:48.199Z
CVE-2026-27447 OpenPrinting CUPS: Authorization bypass via case-insensitive group-member lookup
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorization checks. The vulnerability allows an unprivileged user to gain unauthorized access to restricted operations by using a user with a username that differs only in case from an authorized user. At time of publication, there are no publicly available patches.
Problem types: cwe_id: CWE-863
description: CWE-863: Incorrect Authorization
Affected products: vendor: OpenPrinting
product: cups
CVSS v3.1: attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.8
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: LOW
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
version: 3.1
Published: 2026-04-03T21:11:59.734Z
CVE-2026-27448 pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback
pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to `set_tlsext_servername_callback` raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Starting in version 26.0.0, unhandled exceptions now result in rejecting the connection.
Problem types: cwe_id: CWE-636
description: CWE-636: Not Failing Securely ('Failing Open')
Affected products: vendor: pyca
product: pyopenssl
Published: 2026-03-17T23:24:30.661Z
CVE-2026-27449 Umbraco.Engage.Forms Allows Unauthorized Access to Multiple API Endpoints
Umbraco Engage is a business intelligence platform. A vulnerability has been identified in Umbraco Engage prior to versions 16.2.1 and 17.1.1 where certain API endpoints are exposed without enforcing authentication or authorization checks. The affected endpoints can be accessed directly over the network without requiring a valid session or user credentials. By supplying a user-controlled identifier parameter (e.g., ?id=), an attacker can retrieve sensitive data associated with arbitrary records. Because no access control validation is performed, the endpoints are vulnerable to enumeration attacks, allowing attackers to iterate over identifiers and extract data at scale. An unauthenticated attacker can retrieve sensitive Engage-related data by directly querying the affected API endpoints. The vulnerability allows arbitrary record access through predictable or enumerable identifiers. The confidentiality impact is considered high. No direct integrity or availability impact has been identified. The scope of exposed data depends on the deployment but may include analytics data, tracking data, customer-related information, or other Engage-managed content. The vulnerability affects both v16 and v17. Patches have already been released. Users are advised to update to 16.2.1 or 17.1.1. No known workarounds are available.
Problem types: cwe_id: CWE-284
description: CWE-284: Improper Access Control
cwe_id: CWE-306
description: CWE-306: Missing Authentication for Critical Function
cwe_id: CWE-639
description: CWE-639: Authorization Bypass Through User-Controlled Key
Affected products: vendor: umbraco
product: Umbraco.Engage.Forms
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
version: 3.1
Published: 2026-02-26T21:51:14.512Z
CVE-2026-27452 ASN.1 TypeScript Library: Decoding an INTEGER could leak the underlying ArrayBuffer
ASN.1 TypeScript ESM library, including codecs for Basic Encoding Rules (BER) and Distinguished Encoding Rules (DER). In versions 11.0.5 and below, in some cases, decoding an INTEGER could leak the underlying ArrayBuffer. This issue is expected to be fixed in version 11.0.6.
Problem types: cwe_id: CWE-200
description: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected products: vendor: JonathanWilbur
product: asn1-ts
Published: 2026-02-21T06:50:35.877Z
CVE-2026-27454 Discourse has check revision visibility on posts endpoint
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, requesting /posts/:id.json?version=X bypassed authorization checks on post revisions. The display_post method called post.revert_to directly without verifying whether the revision was hidden or if the user had permission to view edit history. This meant hidden revisions (intentionally concealed by staff) could be read by any user by simply enumerating version numbers. Starting in versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, Discourse looks up the PostRevision and call guardian.ensure_can_see! before reverting, consistent with how the /posts/:id/revisions/:revision endpoint already authorizes access. No known workarounds are available.
Problem types: cwe_id: CWE-862
description: CWE-862: Missing Authorization
Affected products: vendor: discourse
product: discourse
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
version: 3.1
Published: 2026-03-19T20:39:28.350Z
CVE-2026-27456 util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup
util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU (Time-of-Check-Time-of-Use) vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privileges via fork() + setuid() + realpath(), but subsequently re-canonicalizes and opens it with root privileges (euid=0) without verifying that the path has not been replaced between both operations. Neither O_NOFOLLOW, nor inode comparison, nor post-open fstat() are employed. This allows a local unprivileged user to replace the source file with a symlink pointing to any root-owned file or device during the race window, causing the SUID binary to open and mount it as root. Exploitation requires an /etc/fstab entry with user,loop options whose path points to a directory where the attacker has write permission, and that /usr/bin/mount has the SUID bit set (the default configuration on virtually all Linux distributions). The impact is unauthorized read access to root-protected files and block devices, including backup images, disk volumes, and any file containing a valid filesystem. This issue has been patched in version 2.41.4.
Problem types: cwe_id: CWE-59
description: CWE-59: Improper Link Resolution Before File Access ('Link Following')
cwe_id: CWE-269
description: CWE-269: Improper Privilege Management
cwe_id: CWE-367
description: CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Affected products: vendor: util-linux
product: util-linux
CVSS v3.1: attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 4.7
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
version: 3.1
Published: 2026-04-03T21:23:00.984Z
CVE-2026-27457 Weblate: Missing access control for the AddonViewSet API exposes all addon configurations
Weblate is a web based localization tool. Prior to version 5.16.1, the REST API's `AddonViewSet` (`weblate/api/views.py`, line 2831) uses `queryset = Addon.objects.all()` without overriding `get_queryset()` to scope results by user permissions. This allows any authenticated user (or anonymous users if `REQUIRE_LOGIN` is not set) to list and retrieve ALL addons across all projects and components via `GET /api/addons/` and `GET /api/addons/{id}/`. Version 5.16.1 fixes the issue.
Problem types: cwe_id: CWE-862
description: CWE-862: Missing Authorization
cwe_id: CWE-200
description: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected products: vendor: WeblateOrg
product: weblate
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
version: 3.1
Published: 2026-02-26T21:56:03.220Z
CVE-2026-27458 LinkAce: Stored XSS in Atom Feed via CDATA Escape in List Description
LinkAce is a self-hosted archive to collect website links. Versions 2.4.2 and below have a Stored Cross-site Scripting vulnerability through the Atom feed endpoint for lists (/lists/feed). An authenticated user can inject a CDATA-breaking payload into a list description that escapes the XML CDATA section, injects a native SVG element into the Atom XML document, and executes arbitrary JavaScript directly in the browser when the feed URL is visited. No RSS reader or additional rendering context is required — the browser's native XML parser processes the injected SVG and fires the onload event handler. This vulnerability exists because the lists feed template outputs list descriptions using Blade's raw syntax ({!! !!}) without sanitization inside a CDATA block. The critical detail is that because the output sits inside <![CDATA[...]]>, an attacker can inject the sequence ]]> to close the CDATA section prematurely, then inject arbitrary XML/SVG elements that the browser parses and executes natively as part of the Atom document. This issue has been fixed in version 2.4.3.
Problem types: cwe_id: CWE-80
description: CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Affected products: vendor: Kovah
product: LinkAce
Published: 2026-02-21T06:54:41.308Z
CVE-2026-27459 pyOpenSSL DTLS cookie callback buffer overflow
pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected.
Problem types: cwe_id: CWE-120
description: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected products: vendor: pyca
product: pyopenssl
Published: 2026-03-17T23:34:28.483Z
CVE-2026-27460 Tandoor Recipes Affected by Denial of Service via Recipe Import
Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Prior to 2.6.5, a critical Denial of Service (DoS) vulnerability was in the recipe import functionality. This vulnerability allows an authenticated user to crash the server or make a significantly degrade its performance by uploading a large size ZIP file (ZIP Bomb). This vulnerability is fixed in 2.6.5.
Problem types: cwe_id: CWE-409
description: CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
Affected products: vendor: TandoorRecipes
product: recipes
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 6.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
version: 3.1
Published: 2026-04-10T19:09:05.883Z
CVE-2026-27461 Pimcore vulnerable to SQL injection via unsanitized filter value in Dependency Dao RLIKE clause
Pimcore is an Open Source Data & Experience Management Platform. In versions up to and including 11.5.14.1 and 12.3.2, the filter query parameter in the dependency listing endpoints is JSON-decoded and the value field is concatenated directly into RLIKE clauses without sanitization or parameterized queries. Exploiting this issue requires admin authentication. An attacker with admin panel access can extract the full database including password hashes of other admin users. Version 12.3.3 contains a patch.
Problem types: cwe_id: CWE-89
description: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected products: vendor: pimcore
product: pimcore
Published: 2026-02-24T02:50:48.287Z
CVE-2026-27464 Metabase: Server-Side Template Injection via Notifications Endpoint Leads to RCE
Metabase is an open-source data analytics platform. In versions prior to 0.57.13 and versions 0.58.x through 0.58.6, authenticated users are able to retrieve sensitive information from a Metabase instance, including database access credentials. During testing, it was confirmed that a low-privileged user can extract sensitive information including database credentials, into the email body via template evaluation. This issue has been fixed in versions 0.57.13 and 0.58.7. To workaround this issue, users can disable notifications in their Metabase instance to disallow access to the vulnerable endpoints.
Problem types: cwe_id: CWE-1336
description: CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
cwe_id: CWE-94
description: CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected products: vendor: metabase
product: metabase
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.7
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
version: 3.1
Published: 2026-02-21T07:57:50.957Z
CVE-2026-27465 Fleet: Sensitive Google Calendar credentials disclosed to low-privileged users
Fleet is open source device management software. In versions prior to 4.80.1, a vulnerability in Fleet’s configuration API could expose Google Calendar service account credentials to authenticated users with low-privilege roles. This may allow unauthorized access to Google Calendar resources associated with the service account. Fleet returns configuration data through an API endpoint that is accessible to authenticated users, including those with the lowest-privilege “Observer” role. In affected versions, Google Calendar service account credentials were not properly obfuscated before being returned. As a result, a low-privilege user could retrieve the service account’s private key material. Depending on how the Google Calendar integration is configured, this could allow unauthorized access to calendar data or other Google Workspace resources associated with the service account. This issue does not allow escalation of privileges within Fleet or access to device management functionality. Version 4.80.1 patches the issue. If an immediate upgrade is not possible, administrators should remove the Google Calendar integration from Fleet and rotate the affected Google service account credentials.
Problem types: cwe_id: CWE-201
description: CWE-201: Insertion of Sensitive Information Into Sent Data
Affected products: vendor: fleetdm
product: fleet
Published: 2026-02-26T02:54:04.886Z
CVE-2026-27466 BigBlueButton: Exposed ClamAV port enables Denial of Service
BigBlueButton is an open-source virtual classroom. In versions 3.0.21 and below, the official documentation for "Server Customization" on Support for ClamAV as presentation file scanner contains instructions that leave a BBB server vulnerable for Denial of Service. The flawed command exposes both ports (3310 and 7357) to the internet. A remote attacker can use this to send complex or large documents to clamd and waste server resources, or shutdown the clamd process. The clamd documentation explicitly warns about exposing this port. Enabling ufw (ubuntu firewall) during install does not help, because Docker routes container traffic through the nat table, which is not managed or restricted by ufw. Rules installed by ufw in the filter table have no effect on docker traffic. In addition, the provided example also mounts /var/bigbluebutton with write permissions into the container, which should not be required. Future vulnerabilities in clamd may allow attackers to manipulate files in that folder. Users are unaffected unless they have opted in to follow the extra instructions from BigBlueButton's documentation. This issue has been fixed in version 3.0.22.
Problem types: cwe_id: CWE-668
description: CWE-668: Exposure of Resource to Wrong Sphere
Affected products: vendor: bigbluebutton
product: bigbluebutton
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 7.2
baseSeverity: HIGH
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L
version: 3.1
Published: 2026-02-21T07:14:49.851Z
CVE-2026-27467 BigBlueButton: Audio from participants to the server initially unmuted
BigBlueButton is an open-source virtual classroom. In versions 3.0.19 and below, when first joining a session with the microphone muted, the client sends audio to the server regardless of mute state. Media is discarded at the server side, so it isn't audible to any participants, but this may allow for malicious server operators to access audio data. The behavior is only incorrect between joining the meeting and the first time the user unmutes. This issue has been fixed in version 3.0.20.
Problem types: cwe_id: CWE-200
description: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected products: vendor: bigbluebutton
product: bigbluebutton
CVSS v3.1: attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 2
baseSeverity: LOW
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N
version: 3.1
Published: 2026-02-21T07:18:26.156Z
CVE-2026-27468 Mastodon may allow unconfirmed FASP to make subscriptions
Mastodon is a free, open-source social network server based on ActivityPub. FASP registration requires manual approval by an administrator. In versions 4.4.0 through 4.4.13 and 4.5.0 through 4.5.6, actions performed by a FASP to subscribe to account/content lifecycle events or to backfill content did not check properly whether the FASP was actually approved. This only affects Mastodon servers that have opted in to testing the experimental FASP feature by setting the environment variable `EXPERIMENTAL_FEATURES` to a value including `fasp`. An attacker can make subscriptions and request content backfill without approval by an administrator. Done once, this leads to minor information leak of URIs that are publicly available anyway. But done several times this is a serious vector for DOS, putting pressure on the sidekiq worker responsible for the `fasp` queue. The fix is included in the 4.4.14 and 4.5.7 releases. Admins that are actively testing the experimental "fasp" feature should update their systems. Servers not using the experimental feature flag `fasp` are not affected.
Problem types: cwe_id: CWE-862
description: CWE-862: Missing Authorization
Affected products: vendor: mastodon
product: mastodon
Published: 2026-02-24T17:12:40.349Z
CVE-2026-27469 Isso: Stored XSS via comment website field
Isso is a lightweight commenting server written in Python and JavaScript. In commits before 0afbfe0691ee237963e8fb0b2ee01c9e55ca2144, there is a stored Cross-Site Scripting (XSS) vulnerability affecting the website and author comment fields. The website field was HTML-escaped using quote=False, which left single and double quotes unescaped. Since the frontend inserts the website value directly into a single-quoted href attribute via string concatenation, a single quote in the URL breaks out of the attribute context, allowing injection of arbitrary event handlers (e.g. onmouseover, onclick). The same escaping is missing entirely from the user-facing comment edit endpoint (PUT /id/) and the moderation edit endpoint (POST /id//edit/). This issue has been patched in commit 0afbfe0691ee237963e8fb0b2ee01c9e55ca2144. To workaround, nabling comment moderation (moderation = enabled = true in isso.cfg) prevents unauthenticated users from publishing comments, raising the bar for exploitation, but it does not fully mitigate the issue since a moderator activating a malicious comment would still expose visitors.
Problem types: cwe_id: CWE-79
description: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
cwe_id: CWE-116
description: CWE-116: Improper Encoding or Escaping of Output
Affected products: vendor: isso-comments
product: isso
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 6.1
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
version: 3.1
Published: 2026-02-21T07:24:38.971Z