OpenClaw versions prior to 2026.2.13 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 recover the authentication token.
Attack Parameters
Attack Vector
Network
Атака возможна удалённо
Attack Complexity
High
Сложно эксплуатировать
Attack Requirements
None
Нет дополнительных условий
Privileges Required
None
Права не нужны
User Interaction
None
Не нужно действие пользователя
Impact Assessment
Confidentiality
Low
Частичная утечка данных
Integrity
Low
Частичная модификация данных
Availability
None
Нет нарушения работы
CVSS Vector v4.0
Weakness Type (CWE)
References 3
https://github.com/openclaw/openclaw/commit/113ebfd6a23c4beb8a575d48f7482593254…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-47q7-97xp-m272
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-timing-attack-via-hook-token-comp…
disclosure@vulncheck.com