CVE-2026-28474

9.3 criticalEPSS 0.6%

Critical (9.3) in openclaw openclaw. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in @openclaw/nextcloud-talk 2026.2.6.

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.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
CWE: CWE-863
Published: 2026-03-05
Modified: 2026-09-17
Record from: the NVD, synced 2026-10-19

Affected

openclaw:openclaw

Packages (OSV)

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-r5h9-vjqc-hq3r	npm	@openclaw/nextcloud-talk	<2026.2.6	2026.2.6

References

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