rainbutterfly/cve_corpus huggingface dataset:
CVE-2026-44109 OpenClaw < 2026.4.15 - Authentication Bypass in Feishu Webhook and Card-Action Validation
OpenClaw before 2026.4.15 contains an authentication bypass vulnerability in Feishu webhook and card-action validation that allows unauthenticated requests to reach command dispatch. Missing encryptKey configuration and blank callback tokens fail open instead of rejecting requests, enabling attackers to bypass signature verification and replay protection to execute arbitrary commands.
Problem types: cwe_id: CWE-1188
description: CWE-1188 Initialization of a Resource with an Insecure Default
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
version: 3.1
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Credits: lang: en
value: dhyabi2
Published: 2026-05-06T19:49:27.637Z
CVE-2026-44110 OpenClaw <  2026.4.15 - Authorization Bypass in Matrix Room Control Commands via DM Pairing Store
OpenClaw before 2026.4.15 contains an authorization bypass vulnerability in Matrix room control-command authorization that trusts DM pairing-store entries. Attackers with DM-paired sender IDs can execute room control commands without being in configured allowlists by posting in bot rooms, potentially enabling privileged OpenClaw behavior.
Problem types: cwe_id: CWE-863
description: CWE-863: Incorrect Authorization
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
version: 3.1
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Credits: lang: en
value: Nathan (@nexrin)
lang: en
value: KeenSecurityLab
lang: en
value: qclawer
Published: 2026-05-06T19:49:28.347Z
CVE-2026-44111 OpenClaw < 2026.4.15 - Arbitrary Markdown File Read via QMD memory_get
OpenClaw before 2026.4.15 contains an arbitrary file read vulnerability in the QMD backend memory_get function that allows callers to read any Markdown files within the workspace root. Attackers with access to the memory tool can bypass path restrictions by providing arbitrary workspace Markdown paths to read files outside canonical memory locations or indexed QMD result sets.
Problem types: cwe_id: CWE-183
description: CWE-183: Permissive List of Allowed Inputs
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: NONE
availabilityImpact: NONE
version: 3.1
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Credits: lang: en
value: zsx (@zsxsoft)
lang: en
value: KeenSecurityLab
lang: en
value: qclawer
Published: 2026-05-06T19:49:29.004Z
CVE-2026-44112 OpenClaw < 2026.4.22 - Symlink Swap Race Condition in OpenShell FS Bridge Writes
OpenClaw before 2026.4.22 contains a time-of-check/time-of-use race condition in OpenShell sandbox filesystem writes that allows attackers to redirect writes outside the intended mount root. Attackers can exploit symlink swaps during filesystem operations to bypass sandbox restrictions and write files outside the local mount root.
Problem types: cwe_id: CWE-367
description: Time-of-check Time-of-use (TOCTOU) Race Condition
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: CHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
version: 3.1
baseSeverity: CRITICAL
baseScore: 9.6
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Credits: lang: en
value: vladimir tokarev (@VladimirEliTokarev)
Published: 2026-05-06T19:49:29.626Z
CVE-2026-44113 OpenClaw < 2026.4.22 - Time-of-Check/Time-of-Use Race Condition in OpenShell FS Bridge
OpenClaw before 2026.4.22 contains a time-of-check/time-of-use race condition in the OpenShell filesystem bridge that allows attackers to read files outside the intended mount root. Attackers can exploit symlink swaps during filesystem operations to bypass sandbox restrictions and access unauthorized file contents.
Problem types: cwe_id: CWE-367
description: Time-of-check Time-of-use (TOCTOU) Race Condition
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
version: 3.1
baseSeverity: HIGH
baseScore: 7.7
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Credits: lang: en
value: vladimir tokarev (@VladimirEliTokarev)
Published: 2026-05-06T19:49:30.325Z
CVE-2026-44114 OpenClaw < 2026.4.20 - Environment Variable Namespace Collision via Workspace dotenv
OpenClaw before 2026.4.20 fails to properly reserve the OPENCLAW_ runtime-control environment namespace in workspace dotenv files, allowing attackers to override critical runtime variables. Malicious workspaces can set variables like OPENCLAW_GIT_DIR to manipulate trusted OpenClaw runtime behavior during source-update or installer flows.
Problem types: cwe_id: CWE-184
description: CWE-184: Incomplete List of Disallowed Inputs
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
version: 3.1
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Credits: lang: en
value: foodlook
Published: 2026-05-06T19:49:32.696Z
CVE-2026-44115 OpenClaw < 2026.4.22 - Shell Expansion Bypass in Unquoted Heredocs via Exec Allowlist
OpenClaw before 2026.4.22 contains an exec allowlist analysis vulnerability allowing shell expansion hiding in unquoted heredoc bodies. Attackers can bypass allowlist validation by embedding shell expansion tokens in heredoc bodies to execute unapproved commands at runtime.
Problem types: cwe_id: CWE-184
description: CWE-184: Incomplete List of Disallowed Inputs
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
version: 3.1
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Credits: lang: en
value: vladimir tokarev (@VladimirEliTokarev)
Published: 2026-05-06T19:49:35.128Z
CVE-2026-44116 OpenClaw < 2026.4.22 - Server-Side Request Forgery in Zalo Photo URL Validation
OpenClaw before 2026.4.22 contains a server-side request forgery vulnerability in the Zalo plugin's sendPhoto function that fails to validate outbound photo URLs through the SSRF guard. Attackers can bypass SSRF protection by providing malicious photo URLs to the Zalo Bot API, enabling unauthorized access to internal resources.
Problem types: cwe_id: CWE-918
description: CWE-918 Server-Side Request Forgery (SSRF)
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
version: 3.1
baseSeverity: HIGH
baseScore: 8.6
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Credits: lang: en
value: foodlook
Published: 2026-05-06T19:49:35.754Z
CVE-2026-44117 OpenClaw < 2026.4.20 - Server-Side Request Forgery in QQBot Direct Media Upload
OpenClaw before 2026.4.20 contains a server-side request forgery vulnerability in QQBot direct media upload that skips URL validation. Attackers can bypass SSRF protections by sending crafted image URLs to uploadC2CMedia and uploadGroupMedia endpoints to relay unintended requests.
Problem types: cwe_id: CWE-918
description: CWE-918 Server-Side Request Forgery (SSRF)
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: LOW
integrityImpact: NONE
availabilityImpact: NONE
version: 3.1
baseSeverity: MEDIUM
baseScore: 5.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Credits: lang: en
value: foodlook
Published: 2026-05-06T19:49:36.498Z
CVE-2026-44118 OpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Token Header
OpenClaw before 2026.4.22 derives loopback MCP owner context from spoofable server-issued bearer tokens in request headers. Non-owner loopback clients can present themselves as owner to bypass owner-gated operations by manipulating the sender-owner header metadata.
Problem types: cwe_id: CWE-290
description: CWE-290: Authentication Bypass by Spoofing
Affected products: vendor: OpenClaw
product: OpenClaw
default_status: unaffected
CVSS v3.1: attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
version: 3.1
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Credits: lang: en
value: vladimir tokarev (@VladimirEliTokarev)
Published: 2026-05-06T19:49:37.173Z
CVE-2026-44119 Apache HTTP Server: escalation of privilege through expressions in .htaccess in multiple modules
Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.

This issue affects Apache HTTP Server: from through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Problem types: cwe_id: CWE-269
description: CWE-269 Improper Privilege Management
Affected products: vendor: Apache Software Foundation
product: Apache HTTP Server
default_status: unaffected
Credits: lang: en
value: Lucian Nitescu
lang: en
value: as3617 (@real_as3617) at ENKI Whitehat
lang: en
value: Zhang San
lang: en
value: Martin Petrák
lang: en
value: joaovicdev
lang: en
value: Rooting | Lucas Torres
lang: en
value: R4mbb of KRsecurity
lang: en
value: gggggggga@Xiaomi ShadowBlade Security Lab
lang: en
value: NikKrian of H3C Security Center(h3c.com)
lang: en
value: lokerxx
Published: 2026-06-08T15:17:31.939Z
CVE-2026-44125 Missing Authorization in GINAv2
SEPPmail Secure Email Gateway before version 15.0.4 fails to enforce authorization checks for multiple endpoints in the new GINA UI, allowing unauthenticated remote attackers to access functionality that should require a valid session.
Problem types: cwe_id: CWE-862
description: CWE-862: Missing Authorization
Affected products: vendor: SEPPmail AG
product: Secure Email Gateway
default_status: unaffected
Credits: lang: en
value: Dario Weiss of InfoGuard Labs
Published: 2026-05-08T13:15:07.947Z
CVE-2026-44126 Insecure deserialization
SEPPmail Secure Email Gateway before version 15.0.4 insecurely deserializes untrusted data, which can be reached from the new GINA UI and may allow unauthenticated remote attackers to execute code via a crafted serialized object.
Problem types: cwe_id: CWE-502
description: CWE-502 Deserialization of untrusted data
Affected products: vendor: SEPPmail AG
product: Secure Email Gateway
default_status: unaffected
Credits: lang: en
value: Dario Weiss of InfoGuard Labs
Published: 2026-05-08T13:15:52.032Z
CVE-2026-44127 Local File Inclusion (LFI) and Arbitrary File Deletion
SEPPmail Secure Email Gateway before version 15.0.4 contains an unauthenticated path traversal vulnerability in the identifier parameter of /api.app/attachment/preview that allows remote attackers to read arbitrary local files and trigger deletion of files in the targeted directory with the privileges of the api.app process.
Problem types: cwe_id: CWE-73
description: CWE-73 External control of file name or path
Affected products: vendor: SEPPmail AG
product: Secure Email Gateway
default_status: unaffected
Credits: lang: en
value: Dario Weiss of InfoGuard Labs
Published: 2026-05-08T13:13:05.667Z
CVE-2026-44128 Unauthenticated Remote Code Execution
SEPPmail Secure Email Gateway before version 15.0.2.1 allows unauthenticated remote code execution in the new GINA UI because an endpoint passes attacker-controlled input from a parameter to Perl's eval.
Problem types: cwe_id: CWE-95
description: CWE-95 Improper neutralization of directives in dynamically evaluated code ('eval injection')
Affected products: vendor: SEPPmail AG
product: Secure Email Gateway
default_status: unaffected
Credits: lang: en
value: Dario Weiss of InfoGuard Labs
Published: 2026-05-08T13:13:46.034Z
CVE-2026-44129 Server-side template injection
SEPPmail Secure Email Gateway before version 15.0.4 contains a server-side template injection vulnerability in the new GINA UI because an endpoint accepts attacker-controlled template, allowing remote attackers to execute arbitrary template expressions and potentially achieve remote code execution depending on the enabled template plugins.
Problem types: cwe_id: CWE-1336
description: CWE-1336 Improper neutralization of special elements used in a template engine
Affected products: vendor: SEPPmail AG
product: Secure Email Gateway
default_status: unaffected
Credits: lang: en
value: Dario Weiss of InfoGuard Labs
Published: 2026-05-08T13:14:36.616Z
CVE-2026-44159 Tyler Identity Local (TID-L) default administrative credentials
Tyler Identity Local (TID-L) uses documented, default administrative credentials. Users are not required to change the credentials before deployment. TID-L has not been distributed since December 2020, and has not been supported since 2021.
Problem types: cwe_id: CWE-1392
description: CWE-1392 Use of Default Credentials
Affected products: vendor: Tyler Technologies
product: TID-L
default_status: unknown
CVSS v3.1: scope: UNCHANGED
version: 3.1
baseScore: 9.8
attackVector: NETWORK
baseSeverity: CRITICAL
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
integrityImpact: HIGH
userInteraction: NONE
attackComplexity: LOW
availabilityImpact: HIGH
privilegesRequired: NONE
confidentialityImpact: HIGH
Credits: lang: en
value: Logan Diomedi, Depth Security
Published: 2026-05-19T13:45:06.907Z
CVE-2026-44166 Pocketbase: Account pre-hijacking via OAuth2 unverfied->verified autolinking upgrade
Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the OAuth2 app providers, e.g. "A". When the victim gets invited or decides to sign up to your app on their own with provider "B" (PocketBase OAuth2 auth requires to be with a different provider because we don't allow multiple OAuth2 accounts from the same provider to be associated to a single PocketBase user), the user created previously by the attacker will be autolinked, upgraded to "verified" and its old password reset. This vulnerability is fixed in 0.22.42 and 0.37.4.
Problem types: cwe_id: CWE-287
description: CWE-287: Improper Authentication
Affected products: vendor: pocketbase
product: pocketbase
Published: 2026-05-12T17:16:59.613Z
CVE-2026-44167 phpseclib: CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()
phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.
Problem types: cwe_id: CWE-400
description: CWE-400: Uncontrolled Resource Consumption
Affected products: vendor: phpseclib
product: phpseclib
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
Published: 2026-05-12T17:22:14.764Z
CVE-2026-44183 Cleanuparr: X-Forwarded-For leftmost parsing allows remote unauthenticated admin takeover when reverse-proxy mode is enabled
Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent.  Prior to 2.9.10, TrustedNetworkAuthenticationHandler.ResolveClientIp parses the leftmost entry of the X-Forwarded-For header as the client IP. That entry is attacker-controlled — X-Forwarded-For is append-only, so the leftmost value is whatever the original HTTP client claimed. By sending a spoofed local IP in the header, an unauthenticated remote attacker passes the trusted-network check and is logged in as the Cleanuparr administrator. This vulnerability is fixed in 2.9.10.
Problem types: cwe_id: CWE-290
description: CWE-290: Authentication Bypass by Spoofing
cwe_id: CWE-348
description: CWE-348: Use of Less Trusted Source
Affected products: vendor: Cleanuparr
product: Cleanuparr
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.8
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
Published: 2026-05-12T17:32:52.143Z
CVE-2026-44184 Cleanuparr: Reflective CORS combined with trusted-network auth allows cross-origin admin API reads
Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent.  Prior to 2.9.10, Cleanuparr's global CORS policy reflects every request Origin and combines it with AllowCredentials(). When DisableAuthForLocalAddresses is enabled, the API also authenticates requests purely by source IP via TrustedNetworkAuthenticationHandler. The combination lets any website that an admin (or any user on a trusted IP) visits read authenticated API responses cross-origin — including the admin's permanent API key. This vulnerability is fixed in 2.9.10.
Problem types: cwe_id: CWE-346
description: CWE-346: Origin Validation Error
cwe_id: CWE-942
description: CWE-942: Permissive Cross-domain Policy with Untrusted Domains
Affected products: vendor: Cleanuparr
product: Cleanuparr
CVSS v3.1: attackComplexity: LOW
attackVector: ADJACENT_NETWORK
availabilityImpact: HIGH
baseScore: 8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
version: 3.1
Published: 2026-05-12T17:33:50.855Z
CVE-2026-44185 Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`
Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Problem types: cwe_id: CWE-126
description: CWE-126 Buffer Over-read
Affected products: vendor: Apache Software Foundation
product: Apache HTTP Server
default_status: unaffected
Credits: lang: en
value: Zhenpeng (Leo) Lin at depthfirst
Published: 2026-06-08T15:22:11.809Z
CVE-2026-44186 Apache HTTP Server: Loop in `proxy_ftp_handler` in mod_proxy_ftp
Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server.

This issue affects undefined: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Problem types: cwe_id: CWE-835
description: CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
Affected products: vendor: Apache Software Foundation
product: Apache HTTP Server
default_status: unaffected
Credits: lang: en
value: Zhenpeng (Leo) Lin at depthfirst
Published: 2026-06-08T15:11:12.743Z
CVE-2026-44193 OPNsense: RCE via XMLRPC endpoint using `opnsense.restore_config_section` method
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, the XMLRPC method opnsense.restore_config_section fails to sanitize user supplied input leading to Remote Code Execution. This vulnerability is fixed in 26.1.7.
Problem types: cwe_id: CWE-88
description: CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Affected products: vendor: opnsense
product: core
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.1
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
version: 3.1
Published: 2026-05-13T21:52:04.150Z
CVE-2026-44194 OPNsense: RCE on user managment
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, an authenticated Remote Code Execution (RCE) vulnerability in the OPNsense core allows a user with user-management privileges to execute arbitrary system commands as root. An attacker can bypass input validation by formatting their malicious payload as a compliant email address, allowing shell commands to reach the underlying operating system. The flaw exists in the local user synchronization flow, within core/src/opnsense/scripts/auth/sync_user.php. This vulnerability is fixed in 26.1.8.
Problem types: cwe_id: CWE-78
description: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products: vendor: opnsense
product: core
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.1
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
version: 3.1
Published: 2026-05-13T21:53:27.948Z
CVE-2026-44195 OPNsense: Authentication lockout bypass
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, a logic flaw in the OPNsense lockout_handler allows an unauthenticated attacker to continuously reset the authentication failure counter for their IP address. By interjecting a crafted username containing a success keyword ("Accepted" or "Successful login") between normal brute-force attempts, an attacker can prevent the failure counter from ever reaching the lockout threshold. This vulnerability is fixed in 26.1.7.
Problem types: cwe_id: CWE-307
description: CWE-307: Improper Restriction of Excessive Authentication Attempts
Affected products: vendor: opnsense
product: core
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: 2026-05-13T21:52:42.373Z