Vulnerability from bitnami_vulndb
Published
2024-03-06 10:54
Modified
2025-05-20 10:02
Summary
Envoy forwards invalid Http2/Http3 downstream headers
Details

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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "envoy",
        "purl": "pkg:bitnami/envoy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.22.9"
            },
            {
              "introduced": "1.23.0"
            },
            {
              "fixed": "1.23.6"
            },
            {
              "introduced": "1.24.0"
            },
            {
              "fixed": "1.24.4"
            },
            {
              "introduced": "1.25.0"
            },
            {
              "fixed": "1.25.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27491"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
  },
  "details": "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.",
  "id": "BIT-envoy-2023-27491",
  "modified": "2025-05-20T10:02:07.006Z",
  "published": "2024-03-06T10:54:12.095Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://datatracker.ietf.org/doc/html/rfc9113#section-8.3"
    },
    {
      "type": "WEB",
      "url": "https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp"
    },
    {
      "type": "WEB",
      "url": "https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27491"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Envoy forwards invalid Http2/Http3 downstream headers"
}


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Detection rules are retrieved from Rulezet.