CVE-2026-4039

Name: CVE-2026-4039
Creator: NVD / NIST
Published: 2026-03-12T12:15:59.74+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2026-4039 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability was determined in OpenClaw 2026.2.19-2. This vulnerability affects the function applySkillConfigenvOverrides of the component Skill Env Handler. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

A vulnerability was determined in OpenClaw 2026.2.19-2. This vulnerability affects the function applySkillConfigenvOverrides of the component Skill Env Handler. Executing a manipulation can lead to code injection. It is possible to launch the attack remotely. Upgrading to version 2026.2.21-beta.1 is able to resolve this issue. This patch is called 8c9f35cdb51692b650ddf05b259ccdd75cc9a83c. It is recommended to upgrade the affected component.

Metrics

CVSS 3.1

8.8/10

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

CVSS 4.0

5.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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

0.32%

23.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.2.21

References

https://github.com/openclaw/openclaw/Product
https://github.com/openclaw/openclaw/commit/8c9f35cdb51692b650ddf05b259ccdd75cc9a83cPatch
https://github.com/openclaw/openclaw/releases/tag/v2026.2.21-beta.1Release Notes
https://github.com/openclaw/openclaw/security/advisories/GHSA-82g8-464f-2mv7Mitigation, Vendor Advisory
https://vuldb.com/?ctiid.350651Permissions Required, VDB Entry
https://vuldb.com/?id.350651Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769580Third Party Advisory, VDB Entry

Timeline

Published: Mar 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-4039?

How severe is CVE-2026-4039?

CVE-2026-4039 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2026-4039?

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-2026-4039?

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

Scan your code now

Source: NVD / NIST