Auth bypass in Openclaw
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Openclaw — versions 2026.1.14-1
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-rmxw-jxxx-4cpc (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/8f3bfbd1c4fb967a2ddb5b4b9a05784920814bcf (Patch, patch)
- www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-displayname-and-cros… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28471?
- CVE-2026-28471 is a medium-severity vulnerability in Openclaw, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-03-05.
- How severe is CVE-2026-28471?
- Medium severity. CVSS v3 base score is 5.3 out of 10.