PT-2026-22449 · Npm · @Openclaw/Nextcloud-Talk

Published

2026-02-17

·

Updated

2026-02-17

CVSS v4.0

9.3

Critical

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Summary

In affected versions of the optional Nextcloud Talk plugin (installed separately; not bundled with the core OpenClaw install), an untrusted webhook field (actor.name, display name) could be treated as an allowlist identifier. An attacker could change their Nextcloud display name to match an allowlisted user ID and bypass DM or room allowlists.

Details

Nextcloud Talk webhook payloads provide a stable sender identifier (actor.id) and a mutable display name (actor.name). In affected versions, the plugin’s allowlist matching accepted equality on the display name, which is attacker-controlled.

Affected Packages / Versions

  • Package: @openclaw/nextcloud-talk (npm)
  • Affected: <= 2026.2.2
  • Fixed: >= 2026.2.6
Note: This advisory applies to the optional Nextcloud Talk plugin package. Core openclaw is not impacted unless you installed and use @openclaw/nextcloud-talk.

Fix Commit(s)

Timeline

Mitigation

Upgrade @openclaw/nextcloud-talk to >= 2026.2.6.

Release Process Note

The patched version range is set to the first npm release that contains the fix. Once you are ready, you can publish this advisory without additional version edits.
Thanks @MegaManSec (https://joshua.hu) of AISLE Research Team for reporting.

Fix

Authentication Bypass by Spoofing

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Weakness Enumeration

CWE-290

Related Identifiers

GHSA-R5H9-VJQC-HQ3R

Affected Products

@Openclaw/Nextcloud-Talk