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.

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. Attack…

EPSS: 0.000 (11.8th 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)

CWE-59 — Improper Link Resolution Before File Access

References

GitHub Security Advisory (GHSA-cfvj-7rx7-fc7c) (third-party-advisory)
Patch Commit (patch)
VulnCheck Advisory: OpenClaw < 2026.3.2 - Symlink Traversal in stageSandboxMedia Destination (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.