How severe is CVE-2026-42431?

CVE-2026-42431 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-42431 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42431?

CVE-2026-42431 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42431?

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-2026-42431 have an EU (EUVD) identifier?

Yes. CVE-2026-42431 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26133.

When was CVE-2026-42431 published?

CVE-2026-42431 was published on 2026-04-28 and last updated on 2026-06-17.

CVE-2026-42431

CVE-2026-42431 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 8.1. 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-863.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 7.6
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26133
Weakness: CWE-863
Affected product: Openclaw
Published: 2026-04-28
Last modified: 2026-06-17

Description

OpenClaw before 2026.4.8 contains a security bypass vulnerability in node.invoke(browser.proxy) that allows mutation of persistent browser profiles. Attackers can exploit this path to circumvent the browser.request persistent profile-mutation guard and modify browser configurations.

Frequently asked questions

What is CVE-2026-42431?: OpenClaw before 2026.4.8 contains a security bypass vulnerability in node.invoke(browser.proxy) that allows mutation of persistent browser profiles. Attackers can exploit this path to circumvent the browser.request persistent profile-mutation guard and modify browser configurations.
How severe is CVE-2026-42431?: CVE-2026-42431 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-42431 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42431?: CVE-2026-42431 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42431?: 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-2026-42431 have an EU (EUVD) identifier?: Yes. CVE-2026-42431 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26133.
When was CVE-2026-42431 published?: CVE-2026-42431 was published on 2026-04-28 and last updated on 2026-06-17.

References

Affected products (1)

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

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