Description
OpenClaw versions prior to 2026.2.12 use non-constant-time string comparison for hook token validation, allowing attackers to infer tokens through timing measurements. Remote attackers with network access to the hooks endpoint can exploit timing side-channels across multiple requests to gradually determine the authentication token.
References (3)
Core 3
Core References
Vendor Advisory vendor-advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-jmm5-fvh5-gf4p
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/openclaw-timing-attack-in-hooks-token-authentication
Scores
CVSS v3
5.9
EPSS
0.0039
EPSS Percentile
30.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-208
Status
published
Products (2)
npm/openclaw
0 - 2026.2.12npm
openclaw/openclaw
< 2026.2.12
Published
Mar 05, 2026
Tracked Since
Mar 06, 2026