What’s Vulnerable › Vulnerabilities

CVE-2026-4039: OpenClaw Skill Env applySkillConfigenvOverrides code injection

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-12 · updated 2026-06-17
• Weakness: CWE-74

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.

Affected products

• OpenClaw: before 2026.2.21 — fixed in 2026.2.21

How to fix

Upgrade to a fixed version: OpenClaw 2026.2.21. Check the vendor advisory for mitigations.

References

• https://github.com/openclaw/openclaw/
• https://github.com/openclaw/openclaw/commit/8c9f35cdb51692b650ddf05b259ccdd75cc9a83c
• https://github.com/openclaw/openclaw/releases/tag/v2026.2.21-beta.1
• https://github.com/openclaw/openclaw/security/advisories/GHSA-82g8-464f-2mv7
• https://vuldb.com/?ctiid.350651
• https://vuldb.com/?id.350651
• https://vuldb.com/?submit.769580

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