How severe is CVE-2026-28474?

CVE-2026-28474 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-28474 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28474?

CVE-2026-28474 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28474?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-28474 have an EU (EUVD) identifier?

Yes. CVE-2026-28474 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9920.

When was CVE-2026-28474 published?

CVE-2026-28474 was published on 2026-03-05 and last updated on 2026-06-17.

CVE-2026-28474

CVE-2026-28474 is a critical-severity vulnerability in Openclaw with a CVSS 3.x base score of 9.8. 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-863.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9920
Weakness: CWE-863
Affected product: Openclaw
Published: 2026-03-05
Last modified: 2026-06-17

Description

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and gain unauthorized access to restricted conversations.

Frequently asked questions

What is CVE-2026-28474?: OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and gain unauthorized access to restricted conversations.
How severe is CVE-2026-28474?: CVE-2026-28474 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-28474 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28474?: CVE-2026-28474 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28474?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-28474 have an EU (EUVD) identifier?: Yes. CVE-2026-28474 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9920.
When was CVE-2026-28474 published?: CVE-2026-28474 was published on 2026-03-05 and last updated on 2026-06-17.

References

Affected products (1)

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

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