OpenClaw < 2026.3.31 - Sandbox Escape via TOCTOU Race in Remote FS Bridge readFile
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
Summary
OpenClaw before 2026.3.31 contains a time-of-check-time-of-use race condition in the remote filesystem bridge readFile function that allows sandbox escape. Attackers can exploit the separate path validation and file read operations to bypass sandbox restrictions and read arbitrary files.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 2026.3.31 | 2026.3.31 | Patch available | CNA |
| — | openclaw (npm) | before 2026.3.31 | 2026.3.31 | Patch available | GHSA-9p3r-hh9g-5cmg |
- OpenClaw VendorOpenClaw Affected before 2026.3.31 Fixed in 2026.3.31 Patch available CNA
- openclaw (npm) Vendor— Affected before 2026.3.31 Fixed in 2026.3.31 Patch available GHSA-9p3r-hh9g-5cmg
Remediation
- Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.3.31
- Fix · GHSA-9p3r-hh9g-5cmg openclaw (npm) Fixed in 2026.3.31 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OpenClaw 2026.3.31
8 records Highest priority Priority MEDIUM 1 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2026-29930 OpenClaw < 2026.3.31 - Sandbox Bypass via Heartbeat Context Inheritance and senderIsOwner EscalationPriority MEDIUM 41
- TI-2026-29932 OpenClaw < 2026.3.31 - Resource Consumption via Unauthorized Telegram Audio Preflight TranscriptionPriority LOW 36
- TI-2026-29904 OpenClaw 2026.3.22 < 2026.3.31 - Forged Nostr DM Pairing State Creation via Signature Verification BypassPriority LOW 36
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41296
- 2026-10-03 Alias added: GHSA-9p3r-hh9g-5cmg
- 2026-10-25 Priority changed: MEDIUM → LOW
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-2026-41296 · CVE Program
- CVE-2026-41296 · NVD
- FIRST EPSS
- GHSA-9p3r-hh9g-5cmg · 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