CVE-2026-100534CWE-639

CVE-2026-100534

Low · published September 26, 2026

CVSS v3.1
3.1
EPSS
0%
Percentile
17.5
In the wild
Unconfirmed
What it is

OpenClaw versions before 2026.8.1 contain an authorization bypass vulnerability in webhook TaskFlow cancellation that allows attackers to cancel unrelated sessions. An attacker with a webhook route secret can supply an arbitrary child session key to cancel ACP or subagent work outside the route's configured authority.

The record
Technical detail
CVSS v3.1
3.1 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
2.3 · CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00266 · 17.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-09-26T07:16Z
References (2)
https://github.com/openclaw/openclaw/security/advisories/GHSA-g24w-m94m-59qc · [email protected]https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-session-cancellation-authorization-bypass · [email protected]
EPSS history
Timeline
  • 27 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 26 SEP 02:18Z
    OpenClaw before 2026.8.1 Session Cancellation Authorization Bypass
    cvelistv5