Path traversal in OpenClaw - CVE-2026-26321
Published: May 4, 2026
Vulnerability identifier: #VU129435
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-26321
CWE-ID: CWE-22
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 disclose sensitive information.
The vulnerability exists due to path traversal in the sendMediaFeishu function in the Feishu extension when processing attacker-controlled mediaUrl values. A remote attacker can supply a crafted mediaUrl that is treated as a local filesystem path to disclose sensitive information.
Exploitation is possible if the attacker can influence tool calls, including via prompt injection.
How to mitigate CVE-2026-26321
Install security update from vendor's website.