How severe is CVE-2026-53811?

CVE-2026-53811 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-2026-53811 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-53811?

CVE-2026-53811 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-53811?

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-2026-53811 have an EU (EUVD) identifier?

Yes. CVE-2026-53811 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36317.

When was CVE-2026-53811 published?

CVE-2026-53811 was published on 2026-06-11 and last updated on 2026-06-17.

CVE-2026-53811

CVE-2026-53811 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-290.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 7.7
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36317
Weakness: CWE-290
Affected product: Openclaw
Published: 2026-06-11
Last modified: 2026-06-17

Description

OpenClaw before 2026.5.7 contains a privilege escalation vulnerability in the Matrix allowFrom feature that allows authenticated accounts to match policy entries through mutable display name metadata. Attackers with the ability to change display names can receive agent access intended for another Matrix identity, potentially gaining unauthorized permissions depending on operator configuration.

Frequently asked questions

What is CVE-2026-53811?: OpenClaw before 2026.5.7 contains a privilege escalation vulnerability in the Matrix allowFrom feature that allows authenticated accounts to match policy entries through mutable display name metadata. Attackers with the ability to change display names can receive agent access intended for another Matrix identity, potentially gaining unauthorized permissions depending on operator configuration.
How severe is CVE-2026-53811?: CVE-2026-53811 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-2026-53811 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-53811?: CVE-2026-53811 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-53811?: 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-2026-53811 have an EU (EUVD) identifier?: Yes. CVE-2026-53811 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36317.
When was CVE-2026-53811 published?: CVE-2026-53811 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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