Vulnerability Report

CVE-2026-28471

Title: Matrix Plugin DM Allowlist Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-28471.

CWE Category CWE-287

Published Date Mar 05, 2026

Modified Date Mar 11, 2026

Exploit Status Not Found

Score 6.3 CVSS v4.0

Exploit Probability (EPSS)

0.23%

Vulnerability Summary

CVE-2026-28471: 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.

Impacted Vendors

openclaw 1

Reference Links

https://github.com/openclaw/openclaw/commit/8f3bfbd1c4fb967a2ddb5b4b9a05784920814bcf https://github.com/openclaw/openclaw/security/advisories/GHSA-rmxw-jxxx-4cpc https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-displayname-and-cross-homeserver-localpart-matching-in-matrix

CVSS v4.0

Source Entity [email protected]

Severity MEDIUM

6.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1