VULNERABILITY INTELLIGENCE
CVE-2023-27491
CVSS score5.4 MEDIUM
EPSS probability0.87%
CISA KEVNot currently listed
Published2023-04-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Description
Envoy is an open source edge and service proxy designed for cloud-native applications. Compliant HTTP/1 service should reject malformed request lines. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, There is a possibility that non compliant HTTP/1 service may allow malformed requests, potentially leading to a bypass of security policies. This issue is fixed in versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9.
Weakness classification
- security-advisories@github.com: CWE-20
- nvd@nist.gov: CWE-444
Primary references
- security-advisories@github.com — Not Applicable
- security-advisories@github.com — Not Applicable
- security-advisories@github.com — Exploit, Vendor Advisory
- security-advisories@github.com — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable