CVE-2026-28475

MEDIUM EPSS 20.1%
Published Mar 5, 20263mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 4.0
Medium
Find Similar
Published Mar 5, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
20.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-208

Affected Products 1

VendorProductVersionRange
openclawopenclaw* <2026.2.13

References 3

  • github.com https://github.com/openclaw/openclaw/commit/113ebfd6a23c4beb8a575d48f7482593254506ec
    Patch
  • github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-47q7-97xp-m272
    Vendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/openclaw-timing-attack-via-hook-token-comparison
    Third Party Advisory

Remediation

  • github.com https://github.com/openclaw/openclaw/commit/113ebfd6a23c4beb8a575d48f7482593254506ec
    Patch