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.
Published: 2026-03-05
Score: 8.2 High
EPSS: < 1% Very Low
KEV: No
Impact: Token Disclosure via Timing Attack
Action: Patch Now
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-jmm5-fvh5-gf4p OpenClaw has non-constant-time token comparison in hooks authentication
History

Mon, 09 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 06 Mar 2026 16:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Thu, 05 Mar 2026 22:15:00 +0000

Type Values Removed Values 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.
Title OpenClaw < 2026.2.12 - Timing Attack in Hooks Token Authentication
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-208
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-09T17:50:10.095Z

Reserved: 2026-02-27T19:18:35.479Z

Link: CVE-2026-28464

cve-icon Vulnrichment

Updated: 2026-03-09T17:50:05.300Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-05T22:16:19.393

Modified: 2026-03-09T17:14:04.110

Link: CVE-2026-28464

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T12:15:35Z

Weaknesses