CVE-2026-28475

MEDIUM

4.8

Description

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.

CVE Details

CVSS v3.1 Score4.8

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published3/5/2026

Last Modified3/11/2026

Sourcenvd

Honeypot Sightings0

Affected Products

openclaw:openclaw

Weaknesses (CWE)

CWE-208

References

https://github.com/openclaw/openclaw/commit/113ebfd6a23c4beb8a575d48f7482593254506ec(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-comparison(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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