onyx --cves cve-2026-73551
CVE-2026-73551
- score
- 0.3
- cvss
- 5.3
- epss
- 0.5%
- published
- 2026-09-21
- kev added
- —
- first seen
Envoy < 1.36.10, 1.37.6, 1.38.4, and 1.39.1 contains a broken access control caused by improper URL normalization of dot and dotdot path segments with semicolon parameters, letting remote clients bypass path-based security policies, exploit requires upstream/downstream path interpretation mismatch.
Timeline
How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.
- Published
- Tracked by Onyx
Weaknesses
References 9
- https://github.com/envoyproxy/envoy/commit/28b6d60a6d96edeece121cac5be701eb46cc7f24
- https://github.com/envoyproxy/envoy/commit/d40a68b0a30a003c4e0a9fd3af637f828b52c37b
- https://github.com/envoyproxy/envoy/commit/e9d6c329f9a3ff19432bf39b60c601df7e3eda33
- https://github.com/envoyproxy/envoy/commit/f74d1107c4f5c9679b66f7a03a6c5b75ddde1989
- https://github.com/envoyproxy/envoy/releases/tag/v1.37.6
- https://github.com/envoyproxy/envoy/releases/tag/v1.39.1
- https://github.com/envoyproxy/envoy/releases/tag/v1.36.10
- https://github.com/envoyproxy/envoy/releases/tag/v1.38.4
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-2w8w-rfw7-8gg4