Vulnerability in Openclaw
CVE-2026-31990
OpenClaw versions prior to 2026.3.2 contain a vulnerability in the stageSandboxMedia function in which it fails to validate destination symlinks during media staging, allowing writes to follow symlinks outside the sandbox workspace. Attackers can exploit this by placing symlinks in the media/inbound directory to overwrite arbitrary files on the host system outside sandbox boundaries.
EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Mitigation, Vendor Advisory, third-party-advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-31990?
- CVE-2026-31990 is a medium-severity vulnerability in Openclaw, classified under Improper Link Resolution Before File Access. CVSS score: 6.1/10. Published 2026-03-19.
- How severe is CVE-2026-31990?
- Medium severity. CVSS v3 base score is 6.1 out of 10.