OpenClaw < 2026.2.12 - Arbitrary File Write via Untrusted sessionFile Path
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass, Code execution
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284 and CWE-78.
Summary
OpenClaw versions prior to 2026.2.12 fail to validate the sessionFile path parameter, allowing authenticated gateway clients to write transcript data to arbitrary locations on the host filesystem. Attackers can supply a sessionFile path outside the sessions directory to create files and append data repeatedly, potentially causing configuration corruption or denial of service.
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 2026.2.12 | 2026.2.12 | Patch available | CNA |
| — | openclaw (npm) | before 2026.2.12 | 2026.2.12 | Patch available | GHSA-64qx-vpxx-mvqf |
- OpenClaw VendorOpenClaw Affected before 2026.2.12 Fixed in 2026.2.12 Patch available CNA
- openclaw (npm) Vendor— Affected before 2026.2.12 Fixed in 2026.2.12 Patch available GHSA-64qx-vpxx-mvqf
Remediation
- Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.2.12
- Fix · GHSA-64qx-vpxx-mvqf openclaw (npm) Fixed in 2026.2.12 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OpenClaw 2026.2.12
7 records Highest priority Priority LOW 7 LOW
Other records, highest priority first
- TI-2026-22751 OpenClaw < 2026.2.12 - Path Traversal via Unsanitized sessionId and sessionFile ParametersPriority LOW 38
- TI-2026-23347 OpenClaw < 2026.2.12 - Webhook Authentication Bypass via Loopback remoteAddress TrustPriority LOW 36
- TI-2026-22733 OpenClaw < 2026.2.12 - Timing Attack in Hooks Token AuthenticationPriority LOW 36
Timeline
- 2026-10-02 Threatist record created from CVE-2026-28459
- 2026-10-03 Alias added: GHSA-64qx-vpxx-mvqf
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-2026-28459 · CVE Program
- CVE-2026-28459 · NVD
- FIRST EPSS
- GHSA-64qx-vpxx-mvqf · 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