{"id":"ALPINE-CVE-2025-6491","details":"In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (\u003e2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.","modified":"2026-11-03T06:30:24.962897616Z","published":"2025-07-13T22:15:23.353Z","upstream":["CVE-2025-6491"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2025-6491"}],"affected":[{"package":{"name":"php81","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/php81?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.1.33-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}},{"package":{"name":"php82","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/php82?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.2.29-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}},{"package":{"name":"php83","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/php83?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.3.23-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}},{"package":{"name":"php83","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/php83?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.3.23-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}},{"package":{"name":"php83","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/php83?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.3.23-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}},{"package":{"name":"php84","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/php84?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.10-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}},{"package":{"name":"php84","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/php84?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.9-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}},{"package":{"name":"php84","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/php84?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.4.9-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-6491.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}