CVE-2026-28475
OpenClaw < 2026.2.13 - Timing Attack via Hook Token Comparison
- State
- Published
- Severity
- 6.3 Medium
- Published
- Mar 5, 2026
- Updated
- Mar 9, 2026
- Reserved
- Feb 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-208 Observable Timing Discrepancy
Affected Products
| Product | Versions |
|---|---|
OpenClawOpenClaw |
|
References
- GitHub Security Advisory (GHSA-47q7-97xp-m272)vendor-advisory
- Patch Commitpatch
- VulnCheck Advisory: OpenClaw < 2026.2.13 - Timing Attack via Hook Token Comparisonthird-party-advisory
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