{"id":"CVE-2026-50572","aliases":["BIT-envoy-2026-50572","EUVD-2026-84102","GHSA-q8wp-gf7q-m8cv","openSUSE-SU-2026:11630-1"],"status":"published","title":"Envoy: ext_authz - RawHttpClientImpl onSuccess 0x0 segfault","description":"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.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0068,"percentile":0.52888,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2026-08-28T00:00:00Z","modified":"2026-10-28T11:16:45Z","fixes":[{"ecosystem":"Bitnami","package":"envoy","fixed_in":["1.36.10","1.37.6","1.38.4","1.39.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"envoy","ranges":[{"type":"SEMVER","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"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"istioctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30.4-1.1"}]}],"bundled":13}],"products":[{"vendor":"envoyproxy","product":"envoy"}],"references":[{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-q8wp-gf7q-m8cv","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory"]},{"url":"https://github.com/envoyproxy/envoy/commit/8dacef38337aeffd62866b5c5910104b63b33db8","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/envoyproxy/envoy/commit/a49085623654e27e9ad6298928557644b849d7ce","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/envoyproxy/envoy/commit/c1b29534a294cb0999e99e1fe0de000310165f03","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/envoyproxy/envoy/commit/c524571ffad517ba650d9563f85afa89194e2cfb","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/envoyproxy/envoy/releases/tag/v1.36.10","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://github.com/envoyproxy/envoy/releases/tag/v1.37.6","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://github.com/envoyproxy/envoy/releases/tag/v1.38.4","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://github.com/envoyproxy/envoy/releases/tag/v1.39.1","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50572","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50572.json","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-48521","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-50572","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73511","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73512","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73513","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73546","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73547","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73548","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73549","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73550","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73551","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73552","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73553","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-50572","title":"Envoy: ext_authz - RawHttpClientImpl onSuccess 0x0 segfault","description":"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.","status":"published","published":"2026-09-21T19:32:00.008Z","modified":"2026-09-22T13:30:59.295Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:20:08.734143Z"}],"euvd":[{"id":"EUVD-2026-84102","description":"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.","status":"published","published":"2026-09-21T19:32:00Z","modified":"2026-09-22T13:30:59Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T17:28:03.363938Z"}],"nvd":[{"id":"CVE-2026-50572","description":"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.","status":"published","published":"2026-09-21T20:17:25.97Z","modified":"2026-10-05T14:12:02.027Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:50.368368Z"}],"osv":[{"id":"CVE-2026-50572","title":"Envoy: ext_authz - RawHttpClientImpl onSuccess 0x0 segfault","description":"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.","status":"published","published":"2026-09-21T19:32:00.008Z","modified":"2026-11-11T13:05:02.743232402Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-11T03:22:04.464623Z"},{"id":"BIT-envoy-2026-50572","title":"Envoy: ext_authz - RawHttpClientImpl onSuccess 0x0 segfault","description":"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.","status":"published","published":"2026-09-29T08:43:03.503Z","modified":"2026-10-06T15:15:05.426852665Z","updated_at":"2026-11-02T15:28:29.563843Z"},{"id":"openSUSE-SU-2026:11630-1","title":"istioctl-1.30.4-1.1 on GA media","description":"These are all security issues fixed in the istioctl-1.30.4-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-08-28T00:00:00Z","modified":"2026-08-29T09:15:04.355652515Z","updated_at":"2026-11-02T16:58:39.516824Z"}]}}