How severe is CVE-2026-43531?

CVE-2026-43531 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-43531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-43531?

CVE-2026-43531 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-43531?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-43531 have an EU (EUVD) identifier?

Yes. CVE-2026-43531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27273.

When was CVE-2026-43531 published?

CVE-2026-43531 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-43531

CVE-2026-43531 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-15.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v4: 7.0
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27273
Weakness: CWE-15
Affected product: Openclaw
Published: 2026-05-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-43531?: 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.
How severe is CVE-2026-43531?: CVE-2026-43531 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-43531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-43531?: CVE-2026-43531 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-43531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-43531 have an EU (EUVD) identifier?: Yes. CVE-2026-43531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27273.
When was CVE-2026-43531 published?: CVE-2026-43531 was published on 2026-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

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