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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-4039

A vulnerability was determined in OpenClaw 2026.2.19-2.

MEDIUM 5.3EPSS 0.32%

Does this matter?

Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 4.0
5.3 MEDIUMCVSS: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/M
EPSS
0.32% probability · 24th percentile
CISA KEV
Not listed
Weakness
CWE-74, CWE-94
Affected
openclaw/openclaw
Source
cna@vuldb.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.