Vulnerability · Published Mar 5, 2026 · Assigned by VulnCheck

CVE-2026-29613OpenClaw < 2026.2.12 - Webhook Authentication Bypass via Loopback remoteAddress Trust

Medium 5.9

In plain English

A medium-severity missing authentication in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.5%top 59.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenClaw versions prior to 2026.2.12 contain a vulnerability in the BlueBubbles (optional plugin) webhook handler in which it authenticates requests based solely on loopback remoteAddress without validating forwarding headers, allowing bypass of configured webhook passwords. When the gateway operates behind a reverse proxy, unauthenticated remote attackers can inject arbitrary BlueBubbles message and reaction events by reaching the proxy endpoint.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.2.12	GHSA-xc7w-v5x6-cc87

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.2.12

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References

GitHub Security Advisory (GHSA-xc7w-v5x6-cc87) vendor-advisory
Patch Commit patch
Hardening Commit patch
VulnCheck Advisory: OpenClaw < 2026.2.12 - Webhook Authentication Bypass via Loopback remoteAddress Trust third-party-advisory