Vulnerability in Envoyproxy Envoy
CVE-2025-46821
Envoy is a cloud-native edge/middle/service proxy. Prior to versions 1.34.1, 1.33.3, 1.32.6, and 1.31.8, Envoy's URI template matcher incorrectly excludes the `*` character from a set of valid characters in the URI path. As a result URI pa…
EPSS: 0.002 (12.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Envoyproxy Envoy — versions < 1.31.8, >= 1.34.0, < 1.34.1, >= 1.33.0, < 1.33.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-46821?
- CVE-2025-46821 is a medium-severity vulnerability in Envoyproxy Envoy, classified under Overly Restrictive Regular Expression. CVSS score: 5.3/10. Published 2025-05-07.
- How severe is CVE-2025-46821?
- Medium severity. CVSS v3 base score is 5.3 out of 10.