How severe is CVE-2026-53806?

CVE-2026-53806 has a CVSS 3.x base score of 8.8, 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 high.

Is CVE-2026-53806 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-53806?

CVE-2026-53806 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-53806?

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-2026-53806 have an EU (EUVD) identifier?

Yes. CVE-2026-53806 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36312.

When was CVE-2026-53806 published?

CVE-2026-53806 was published on 2026-06-11 and last updated on 2026-06-17.

CVE-2026-53806

CVE-2026-53806 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-367.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 7.7
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36312
Weakness: CWE-367
Affected product: Openclaw
Published: 2026-06-11
Last modified: 2026-06-17

Description

OpenClaw before 2026.5.12 contains a shell option parsing vulnerability that allows combined POSIX shell flags to bypass exec revalidation checks. Attackers can exploit this by using combined shell options to execute inline shell content without intended allowlist validation, potentially enabling unauthorized command execution when the affected feature is enabled.

Frequently asked questions

What is CVE-2026-53806?: OpenClaw before 2026.5.12 contains a shell option parsing vulnerability that allows combined POSIX shell flags to bypass exec revalidation checks. Attackers can exploit this by using combined shell options to execute inline shell content without intended allowlist validation, potentially enabling unauthorized command execution when the affected feature is enabled.
How severe is CVE-2026-53806?: CVE-2026-53806 has a CVSS 3.x base score of 8.8, 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 high.
Is CVE-2026-53806 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-53806?: CVE-2026-53806 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-53806?: 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-2026-53806 have an EU (EUVD) identifier?: Yes. CVE-2026-53806 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36312.
When was CVE-2026-53806 published?: CVE-2026-53806 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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