OpenClaw before 2026.4.20 fails to properly preserve untrusted labels for isolated cron awareness events, allowing webhook-triggered cron agent output to be recorded as trusted ...
Date: 2026-05
Affected: openclaw/openclaw
Attack vector: prompt-injection
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2026-44999
CWE: CWE-345
CVSS: 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

OpenClaw before 2026.4.20 fails to properly preserve untrusted labels for isolated cron awareness events, allowing webhook-triggered cron agent output to be recorded as trusted system events. Attackers can exploit this trust-labeling issue to strengthen prompt-injection attacks by rendering untrusted events as trusted System events.


Mitigations:

Architectural layers (MAESTRO):