OpenClaw before 2026.8.1 Session Cancellation Authorization Bypass
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.8.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OpenClaw 2026.8.1
40 records Highest priority Priority MEDIUM 2 MEDIUM, 38 LOW
Other records, highest priority first
- TI-2026-64719 OpenClaw before 2026.8.1 Resource Exhaustion via WebSocket UpgradePriority MEDIUM 43
- TI-2026-64727 OpenClaw before 2026.8.1 DNS Rebinding via CDP HostnamePriority MEDIUM 40
- TI-2026-64728 OpenClaw before 2026.8.1 Unauthorized Command Job AccessPriority LOW 39
Timeline
- 2026-10-02 Threatist record created from CVE-2026-100534
- 2026-10-03 Alias added: GHSA-gg3j-3f24-xwfp
References
More OpenClaw vulnerabilities
- TI-2026-07590 Crabbox < v0.12.0 Environment Variable Information Disclosure CVSS 4.0CRITICAL 9.3
- TI-2026-25309 OpenClaw < 2026.3.28 Media Parsing Path Traversal to Arbitrary File Read CVSS 4.0HIGH 8.7
- TI-2026-65190 OpenClaw Windows Node before 2026.7.1 Remote Code Execution via system.execApprovals.set CVSS 4.0HIGH 8.7
- TI-2026-65188 OpenClaw Windows Node before 2026.7.1 Authorization Bypass CVSS 4.0HIGH 8.7
- TI-2026-20394 Exposure of resource to wrong sphere in OpenClaw CVSS 3.1HIGH 8.8
- TI-2026-27742 OpenClaw < 2026.3.24 - Arbitrary Code Execution via .npmrc in Local Plugin/Hook Installation CVSS 4.0HIGH 8.4
Sources
- CVE-2026-100534 · CVE Program
- CVE-2026-100534 · NVD
- FIRST EPSS
- GHSA-gg3j-3f24-xwfp · GitHub Advisory Database · CC BY 4.0
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