CVE-2026-28475CWE-208

OpenClaw < 2026.2.13 - Timing Attack via Hook Token Comparison

Medium · published March 5, 2026

CVSS v4.0
6.3
EPSS
0%
Percentile
40.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.3 · MEDIUM
Vector
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
EPSS
0.00479 · 40.4th percentile
Weakness
CWE-208 · Observable Timing Discrepancy
Published
2026-03-05T21:59Z
EPSS history
Timeline
  • 05 MAR 21:59Z
    OpenClaw < 2026.2.13 - Timing Attack via Hook Token Comparison
    cvelistv5