CVE-2026-28475 MEDIUM

CVE-2026-28475: OpenClaw < 2026.2.13 - Timing Attack via Hook Token Comparison

Vendor Openclaw
Product OpenClaw
Weakness CWE-208
Published March 5, 2026
Last update March 9, 2026

CVSS base score

6.3/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 5, 2026 CVE published
March 9, 2026 Record updated