Vulnerability in Openclaw
CVE-2026-32977
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability in the fs-bridge writeFile commit step that uses an unanchored container path during the final move operation. An attacker can exploit a time-of-check-time-of-use race condition by modifying parent paths inside the sandbox to redirect committed files outside the validated writable path within the container mount namespace.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (1.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Openclaw — versions 0, 2026.3.11
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-xvx8-77m6-gwg6 (vendor-advisory, Vendor Advisory, third-party-advisory)
- www.vulncheck.com/advisories/openclaw-sandbox-boundary-bypass-via-unanchored-wr… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-32977?
- CVE-2026-32977 is a medium-severity vulnerability in Openclaw, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.3/10. Published 2026-03-31.
- How severe is CVE-2026-32977?
- Medium severity. CVSS v3 base score is 6.3 out of 10.