OpenClaw < 2026.2.12 - Webhook Authentication Bypass via Loopback remoteAddress Trust
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.4%
exploitation probability
0.4%top 66% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
OpenClaw · OpenClawReferences
https://github.com/openclaw/openclaw/commit/743f4b28495cdeb0d5bf76f6ebf4af01f6a02e5ahttps://github.com/openclaw/openclaw/commit/f836c385ffc746cb954e8ee409f99d079bfdcd2fhttps://github.com/openclaw/openclaw/security/advisories/GHSA-xc7w-v5x6-cc87https://www.vulncheck.com/advisories/openclaw-webhook-authentication-bypass-via-loopback-remoteaddress-trust