{"id":"ALPINE-CVE-2026-63686","details":"A NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails.\n\nUsers are recommended to upgrade to version 2.4.69, which fixes this issue.","modified":"2026-10-03T06:30:03.537224120Z","published":"2026-10-01T17:17:29.923Z","upstream":["CVE-2026-63686"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2026-63686"}],"affected":[{"package":{"name":"apache2","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.69-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"}},{"package":{"name":"apache2","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.69-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"}},{"package":{"name":"apache2","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.69-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"}},{"package":{"name":"apache2","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/apache2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.69-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-63686.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}