Advisory details:
github_osv / GHSA-rmxw-jxxx-4cpc
| Advisory ID | github_osv/GHSA-rmxw-jxxx-4cpc |
| Aliases |
CVE-2026-28471
|
| Summary | OpenClaw has a Matrix allowlist bypass via displayName and cross-homeserver localpart matching ### Summary OpenClaw Matrix DM allowlist matching could be bypassed in certain configurations. Matrix support ships as an optional plugin (not bundled with the core install), so this only affects deployments that have installed and enabled the Matrix plugin. ### Affected Packages / Versions - Package: `openclaw` (npm) - Affected: `>= 2026.1.14-1, < 2026.2.2` - Patched: `>= 2026.2.2` ### Details In affected versions, DM allowlist decisions could be made by exact-matching `channels.matrix.dm.allowFrom` entries against multiple sender-derived candidates, including: - The sender display name (attacker-controlled and non-unique) - The sender MXID localpart with the homeserver discarded, so `@alice:evil.example` and `@alice:trusted.example` both match `alice` If an operator configured `channels.matrix.dm.allowFrom` with display names or bare localparts (for example, `"Alice"` or `"alice"`), a remote Matrix user may be able to impersonate an allowed identity for allowlist purposes and reach the routing/agent pipeline. ### Impact Matrix DM allowlist identity confusion. The practical impact depends on your Matrix channel policies and what capabilities are enabled downstream. ### Mitigation - Upgrade to `openclaw >= 2026.2.2`. - Ensure Matrix allowlists contain only full Matrix user IDs (MXIDs) like `@user:server` (or `*`). Do not use display names or bare localparts. ### Fix Commit(s) - `8f3bfbd1c4fb967a2ddb5b4b9a05784920814bcf` ### Release Process Note The patched version is already published to npm; the advisory can be published once you're ready. Thanks @MegaManSec (https://joshua.hu) of [AISLE Research Team](https://aisle.com/) for reporting. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 5.9 |
| Risk | 3.0 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| CWE-287 | Improper Authentication |
| CWE-290 | Authentication Bypass by Spoofing |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.5 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-rmxw-jxxx-4cpc/GHSA-rmxw-jxxx-4cpc.json |
| cvssv4 | 6.3 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-rmxw-jxxx-4cpc/GHSA-rmxw-jxxx-4cpc.json |
| generic_textual | MODERATE |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-09T18:03:41Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/28xxx/CVE-2026-28471.json
Source Advisory: vulnrichment/CVE-2026-28471
[{'Exploitation': 'none'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]