OpenClaw < 2026.2.13 - Timing Attack via Hook Token Comparison
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-208.
Summary
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.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OpenClaw | OpenClaw | before 2026.2.13 | 2026.2.13 | Patch available | CNA |
| — | openclaw (npm) | before 2026.2.13 | 2026.2.13 | Patch available | GHSA-47q7-97xp-m272 |
- OpenClaw VendorOpenClaw Affected before 2026.2.13 Fixed in 2026.2.13 Patch available CNA
- openclaw (npm) Vendor— Affected before 2026.2.13 Fixed in 2026.2.13 Patch available GHSA-47q7-97xp-m272
Remediation
- Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.2.13
- Fix · GHSA-47q7-97xp-m272 openclaw (npm) Fixed in 2026.2.13 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OpenClaw 2026.2.13
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-22747 OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body BufferingPriority MEDIUM 44
- TI-2026-22731 OpenClaw < 2026.2.13 - Path Traversal in Trace and Download Output PathsPriority MEDIUM 44
Timeline
- 2026-10-02 Threatist record created from CVE-2026-28475
- 2026-10-03 Alias added: GHSA-47q7-97xp-m272
References
More Openclaw vulnerabilities
- TI-2026-25309 OpenClaw < 2026.3.28 Media Parsing Path Traversal to Arbitrary File Read 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
- TI-2026-27766 OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing CVSS 4.0MEDIUM 6.9
- TI-2026-07315 OpenClaw bluebubbles Webhook monitor.ts handleBlueBubblesWebhookRequest improper authentication CVSS 4.0MEDIUM 6.9
- TI-2026-17789 OpenClaw < 2026.2.22 - Allowlist Bypass via Command Substitution in system.run CVSS 4.0HIGH 7.5
Sources
- CVE-2026-28475 · CVE Program
- CVE-2026-28475 · NVD
- FIRST EPSS
- GHSA-47q7-97xp-m272 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences