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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.
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VulnCheck: https://www.vulncheck.com/advisories/openclaw-timing-attack-in-hooks-token-authentication Types: Third Party Advisory
CVE Modified by VulnCheck3/06/2026 12:16:30 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Removed
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
New CVE Received from VulnCheck3/05/2026 5:16:19 PM
Action
Type
Old Value
New Value
Added
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.