CVE-2026-28471
Received Received - Intake
Bypass of DM Allowlist in OpenClaw Matrix Plugin Enables Impersonation

Publication date: 2026-03-05

Last updated on: 2026-03-11

Assigner: VulnCheck

Description
OpenClaw version 2026.1.14-1 prior to 2026.2.2, with the Matrix plugin installed and enabled, contain a vulnerability in which DM allowlist matching could be bypassed by exact-matching against sender display names and localparts without homeserver validation. Remote Matrix users can impersonate allowed identities by using attacker-controlled display names or matching localparts from different homeservers to reach the routing and agent pipeline.
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Meta Information
Published
2026-03-05
Last Modified
2026-03-11
Generated
2026-06-16
AI Q&A
2026-03-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-28471
EUVD
EUVD-2026-9917
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openclaw openclaw From 2026.1.14-1 (inc) to 2026.2.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
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Executive Summary

OpenClaw version 2026.1.14-1 with the Matrix plugin installed and enabled has a vulnerability where the DM allowlist matching can be bypassed. This happens because the system matches sender display names and localparts exactly without validating the homeserver. As a result, remote Matrix users can impersonate allowed identities by using attacker-controlled display names or localparts from different homeservers to access routing and agent pipelines.

Impact Analysis

This vulnerability allows remote attackers to impersonate trusted identities by bypassing allowlist checks. This can lead to unauthorized access to routing and agent pipelines, potentially exposing sensitive information or allowing malicious actions within the affected system.

Compliance Impact

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Detection Guidance

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