Improper Authorization in OpenClaw - CVE-2026-33576
Published: April 8, 2026
Vulnerability identifier: #VU125220
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-33576
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote attacker to cause unauthorized network fetches and disk writes.
The vulnerability exists due to improper authorization in extensions/zalo/src/monitor.ts when processing inbound media messages before DM or pairing authorization checks. A remote attacker can send a message with media content to cause unauthorized network fetches and disk writes.
The message itself may still be rejected after the media is fetched and stored.
How to mitigate CVE-2026-33576
Install security update from vendor's website.