Vulnerability in Openclaw
CVE-2026-32988
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability in fs-bridge staged writes where temporary file creation and population are not pinned to a verified parent directory. Attackers can exploit a race condition in parent-path alias changes to write attacker-controlled bytes outside the intended validated path before the final guarded replace step executes.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/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-mj4p-rc52-m843 (vendor-advisory, Vendor Advisory, third-party-advisory)
- www.vulncheck.com/advisories/openclaw-sandbox-boundary-bypass-via-unvalidated-t… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-32988?
- CVE-2026-32988 is a high-severity vulnerability in Openclaw, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.5/10. Published 2026-03-31.
- How severe is CVE-2026-32988?
- High severity. CVSS v3 base score is 7.5 out of 10.