How severe is CVE-2026-53843?

CVE-2026-53843 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-2026-53843 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-53843?

CVE-2026-53843 primarily affects Openclaw. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-53843?

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-2026-53843 have an EU (EUVD) identifier?

Yes. CVE-2026-53843 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37145.

When was CVE-2026-53843 published?

CVE-2026-53843 was published on 2026-06-16 and last updated on 2026-06-18.

CVE-2026-53843

CVE-2026-53843 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-613.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37145
Weakness: CWE-613
Affected product: Openclaw
Published: 2026-06-16
Last modified: 2026-06-18

Description

OpenClaw before 2026.5.26 contains an authorization bypass vulnerability where a surviving pairing-scoped device session can re-establish node token authority after revocation. Attackers with a paired device can regain WebSocket node-level access without renewed approval, weakening revocation controls and maintaining unauthorized access longer than intended.

Frequently asked questions

What is CVE-2026-53843?: OpenClaw before 2026.5.26 contains an authorization bypass vulnerability where a surviving pairing-scoped device session can re-establish node token authority after revocation. Attackers with a paired device can regain WebSocket node-level access without renewed approval, weakening revocation controls and maintaining unauthorized access longer than intended.
How severe is CVE-2026-53843?: CVE-2026-53843 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-2026-53843 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-53843?: CVE-2026-53843 primarily affects Openclaw. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-53843?: 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-2026-53843 have an EU (EUVD) identifier?: Yes. CVE-2026-53843 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37145.
When was CVE-2026-53843 published?: CVE-2026-53843 was published on 2026-06-16 and last updated on 2026-06-18.

References

Affected products (3)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
cpe:2.3:a:openclaw:openclaw:2026.5.26:beta1:*:*:*:node.js:*:*
cpe:2.3:a:openclaw:openclaw:2026.5.26:beta2:*:*:*:node.js:*:*

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