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.
CVE-2026-4039
HIGHNVD 8.88.8
EchelonGraph scoreLOW confidence
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(low)
- EG Risk
- 44(Track)EG Risk 44/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 24%
- KEV
- Not listed
Published
March 12, 2026
Last Modified
June 17, 2026
References (7)
- cna@vuldbhttps://github.com/openclaw/openclaw/
- cna@vuldbhttps://github.com/openclaw/openclaw/commit/8c9f35cdb51692b650ddf05b259ccdd75cc9a83c
- cna@vuldbhttps://github.com/openclaw/openclaw/releases/tag/v2026.2.21-beta.1
- cna@vuldbhttps://github.com/openclaw/openclaw/security/advisories/GHSA-82g8-464f-2mv7
- cna@vuldbhttps://vuldb.com/?ctiid.350651
- cna@vuldbhttps://vuldb.com/?id.350651
- cna@vuldbhttps://vuldb.com/?submit.769580
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-28 15:37 UTCEPSS rescore
- 2026-07-27 13:37 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-94 · CWE-74
- CVE-2003-1432EG 10.0EPSS p94HIGH
- CVE-2002-0495EG 10.0EPSS p96HIGH
- CVE-1999-0702EG 10.0EPSS p98HIGH
- CVE-1999-0509EG 10.0EPSS p98HIGH
- CVE-2005-3056EG 9.8CRITICAL
- CVE-2006-1301EG 9.3EPSS p95HIGH
- CVE-2006-1304EG 9.3EPSS p95HIGH
- CVE-2006-1306EG 9.3EPSS p95HIGH
- CVE-2006-1303EG 9.3EPSS p98HIGH
- CVE-2005-3650EG 9.3EPSS p93HIGH
Frequently asked(5)
What is CVE-2026-4039?
CVE-2026-4039 is a high vulnerability published on March 12, 2026. 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…
When was CVE-2026-4039 disclosed?
CVE-2026-4039 was first published in the National Vulnerability Database on March 12, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4039 actively exploited?
CVE-2026-4039 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.0% of all scored CVEs.
What is the CVSS score of CVE-2026-4039?
CVE-2026-4039 has a CVSS v3 base score of 8.8 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-4039?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4039, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-4039
Is Your Infrastructure Affected by CVE-2026-4039?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.