How severe is CVE-2026-31998?

CVE-2026-31998 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2026-31998 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-31998?

CVE-2026-31998 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-31998?

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-2026-31998 have an EU (EUVD) identifier?

Yes. CVE-2026-31998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13035.

When was CVE-2026-31998 published?

CVE-2026-31998 was published on 2026-03-19 and last updated on 2026-06-17.

CVE-2026-31998

CVE-2026-31998 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 8.6. 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 8.6)
CVSS v4: 8.3
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13035
Weakness: CWE-863
Affected product: Openclaw
Published: 2026-03-19
Last modified: 2026-06-17

Description

OpenClaw versions 2026.2.22 and 2026.2.23 contain an authorization bypass vulnerability in the synology-chat channel plugin where dmPolicy set to allowlist with empty allowedUserIds fails open. Attackers with Synology sender access can bypass authorization checks and trigger unauthorized agent dispatch and downstream tool actions.

Frequently asked questions

What is CVE-2026-31998?: OpenClaw versions 2026.2.22 and 2026.2.23 contain an authorization bypass vulnerability in the synology-chat channel plugin where dmPolicy set to allowlist with empty allowedUserIds fails open. Attackers with Synology sender access can bypass authorization checks and trigger unauthorized agent dispatch and downstream tool actions.
How severe is CVE-2026-31998?: CVE-2026-31998 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2026-31998 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-31998?: CVE-2026-31998 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-31998?: 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-2026-31998 have an EU (EUVD) identifier?: Yes. CVE-2026-31998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13035.
When was CVE-2026-31998 published?: CVE-2026-31998 was published on 2026-03-19 and last updated on 2026-06-17.

References

Affected products (1)

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

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