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.
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.
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.
## 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)
- [6b4b6049b47c3329a7014509594647826669892d](https://github.com/openclaw/openclaw/commit/6b4b6049b47c3329a7014509594647826669892d)
## Timeline
- Introduced: [660f87278c9f292061e097441e0b10c20d62b31b](https://github.com/openclaw/openclaw/commit/660f87278c9f292061e097441e0b10c20d62b31b) (2026-01-20)
- Fixed in repo: [6b4b6049b47c3329a7014509594647826669892d](https://github.com/openclaw/openclaw/commit/6b4b6049b47c3329a7014509594647826669892d) (2026-02-04 UTC)
- First fixed tag containing the change: [v2026.2.3](https://github.com/openclaw/openclaw/releases/tag/v2026.2.3)
- First fixed npm release of `@openclaw/nextcloud-talk`: `2026.2.6` (published 2026-02-07 UTC)
## 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](https://aisle.com/) for reporting.
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Mar 5, 2026, 9:59:49 PM
dateUpdated: Sep 17, 2026, 5:54:15 PM
1 related source bulletins · separate from aliases
WID-SEC-W-2026-0424: OpenClaw: Mehrere Schwachstellen
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-863
Original publisher date fields
published: 2026-03-05T22:16:21.423
lastModified: 2026-09-17T18:16:40.903
1 source CPE criteria · context only
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.