{"id":"ALPINE-CVE-2026-39863","details":"Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.1.1, 6.0.6, and 5.8.8, an out-of-bounds access in the core of Kamailio (formerly OpenSER and SER) allows remote attackers to cause a denial of service (process crash) via a specially crafted data packet sent over TCP. The issue impacts Kamailio instances having TCP or TLS listeners. This vulnerability is fixed in 5.1.1, 6.0.6, and 5.8.8.","modified":"2026-09-14T16:18:08.172113609Z","published":"2026-04-08T20:16:26.550Z","upstream":["CVE-2026-39863"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2026-39863"}],"affected":[{"package":{"name":"kamailio","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/kamailio?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"5.4.5-r2"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-39863.json"}},{"package":{"name":"kamailio","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/kamailio?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"5.8.8-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-39863.json"}},{"package":{"name":"kamailio","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/kamailio?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"5.8.8-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-39863.json"}},{"package":{"name":"kamailio","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/kamailio?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.0.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-39863.json"}},{"package":{"name":"kamailio","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/kamailio?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.0.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-39863.json"}},{"package":{"name":"kamailio","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/kamailio?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.0.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-39863.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"}]}