CVE-2026-31990

Name: CVE-2026-31990
Creator: NVD / NIST
Published: 2026-03-19T02:16:03.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.13%

Last modified Jun 17, 2026

CVE-2026-31990 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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 estimates a 0.13% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS 4.0

6.9/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.13%

3.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.3.2

References

https://github.com/openclaw/openclaw/commit/17ede52a4be3034f6ec4b883ac6b81ad0101558aPatch
https://github.com/openclaw/openclaw/security/advisories/GHSA-cfvj-7rx7-fc7cMitigation, Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-symlink-traversal-in-stagesandboxmedia-destinationThird Party Advisory

Timeline

Published: Mar 19, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-31990?

How severe is CVE-2026-31990?

CVE-2026-31990 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.

How do I fix CVE-2026-31990?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-31990?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST