How severe is CVE-2026-53819?

CVE-2026-53819 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-53819 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-53819?

CVE-2026-53819 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-53819?

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-2026-53819 have an EU (EUVD) identifier?

Yes. CVE-2026-53819 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36325.

When was CVE-2026-53819 published?

CVE-2026-53819 was published on 2026-06-11 and last updated on 2026-06-17.

CVE-2026-53819

CVE-2026-53819 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 8.8. 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-426.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36325
Weakness: CWE-426
Affected product: Openclaw
Published: 2026-06-11
Last modified: 2026-06-17

Description

OpenClaw before 2026.5.27 contains an arbitrary code execution vulnerability in skill install flows where workspace .env files can override the Homebrew executable selection. Attackers with access to trusted operator workspaces can execute unintended Homebrew-compatible executables during skill setup to compromise the system.

Frequently asked questions

What is CVE-2026-53819?: OpenClaw before 2026.5.27 contains an arbitrary code execution vulnerability in skill install flows where workspace .env files can override the Homebrew executable selection. Attackers with access to trusted operator workspaces can execute unintended Homebrew-compatible executables during skill setup to compromise the system.
How severe is CVE-2026-53819?: CVE-2026-53819 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-53819 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-53819?: CVE-2026-53819 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-53819?: 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-2026-53819 have an EU (EUVD) identifier?: Yes. CVE-2026-53819 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36325.
When was CVE-2026-53819 published?: CVE-2026-53819 was published on 2026-06-11 and last updated on 2026-06-17.

References

Affected products (1)

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

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