Is CVE-2026-43531 in the CISA KEV catalog?

No. CVE-2026-43531 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-43531?

CVE-2026-43531 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2026-43531?

CVE-2026-43531 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-43531?

Upgrade openclaw to 2026.4.9 or later.

CVE & CISA-KEV Catalog

CVE-2026-43531

HIGH

7.3

CVSS v3

NVD

Description

OpenClaw before 2026.4.9 contains an environment variable injection vulnerability allowing malicious workspace .env files to set runtime-control variables. Attackers can inject variables affecting update sources, gateway URLs, ClawHub resolution, and browser executable paths to compromise application behavior.

CWE-15

How to fix

Remediation Available

openclawNVD

Affected:< 2026.4.9Fixed in:2026.4.9CVE-2026-43531derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Third-Party Advisory1

vulncheck.com

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-07.