Vulnerability from bitnami_vulndb
Published
2026-09-29 08:43
Modified
2026-09-29 09:14
Summary
Envoy: ext_authz - RawHttpClientImpl onSuccess 0x0 segfault
Details

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's HTTP external-authorization client can retain a stale request callback after a request is rejected. When RawHttpClientImpl::onSuccess later processes the authorization response, it can invoke callbacks_ after the callback owner has been destroyed, causing a use-after-free and process crash under production traffic. The relevant scope boundary is that the vulnerable path uses the HTTP ext_authz client; the advisory does not establish the same trigger for unrelated filters. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "envoy",
        "purl": "pkg:bitnami/envoy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.36.10"
            },
            {
              "introduced": "1.37.0"
            },
            {
              "fixed": "1.37.6"
            },
            {
              "introduced": "1.38.0"
            },
            {
              "fixed": "1.38.4"
            },
            {
              "introduced": "1.39.0"
            },
            {
              "fixed": "1.39.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-50572"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy\u0027s HTTP external-authorization client can retain a stale request callback after a request is rejected. When RawHttpClientImpl::onSuccess later processes the authorization response, it can invoke callbacks_ after the callback owner has been destroyed, causing a use-after-free and process crash under production traffic. The relevant scope boundary is that the vulnerable path uses the HTTP ext_authz client; the advisory does not establish the same trigger for unrelated filters. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.",
  "id": "BIT-envoy-2026-50572",
  "modified": "2026-09-29T09:14:51.928Z",
  "published": "2026-09-29T08:43:03.503Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/commit/8dacef38337aeffd62866b5c5910104b63b33db8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/commit/a49085623654e27e9ad6298928557644b849d7ce"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/commit/c1b29534a294cb0999e99e1fe0de000310165f03"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/commit/c524571ffad517ba650d9563f85afa89194e2cfb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.36.10"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.37.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.38.4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.39.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-q8wp-gf7q-m8cv"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50572"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Envoy: ext_authz - RawHttpClientImpl onSuccess 0x0 segfault"
}



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