{"id":"CVE-2026-39864","state":"PUBLISHED","title":"Kamailio Auth: Processing Vulnerability For Additional Authenticated User Identity Checks","description":"Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.0.5 and 5.8.7, an out-of-bounds read in the auth module of Kamailio (formerly OpenSER and SER) allows remote attackers to cause a denial of service (process crash) via a specially crafted SIP packet if a successful user authentication without a database backend is followed by additional user identity checks. This vulnerability is fixed in 6.0.5 and 5.8.7.","publishedAt":"2026-04-08T19:58:08.565Z","updatedAt":"2026-04-08T20:19:53.226Z","severity":{"score":4.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["kamailio kamailio"],"affected":[{"vendor":"kamailio","product":"kamailio","versions":[{"version":"< 5.8.7","status":"affected"},{"version":">= 6.0.0, < 6.0.5","status":"affected"}]}],"references":["https://github.com/kamailio/kamailio/security/advisories/GHSA-6m86-m342-g48m"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/39xxx/CVE-2026-39864.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-39864","state":"PUBLISHED","datePublished":"2026-04-08T19:58:08.565Z","dateUpdated":"2026-04-08T20:19:53.226Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-07T19:13:20.379Z"},"containers":{"cna":{"title":"Kamailio Auth: Processing Vulnerability For Additional Authenticated User Identity Checks","descriptions":[{"lang":"en","value":"Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.0.5 and 5.8.7, an out-of-bounds read in the auth module of Kamailio (formerly OpenSER and SER) allows remote attackers to cause a denial of service (process crash) via a specially crafted SIP packet if a successful user authentication without a database backend is followed by additional user identity checks. This vulnerability is fixed in 6.0.5 and 5.8.7."}],"affected":[{"vendor":"kamailio","product":"kamailio","versions":[{"version":"< 5.8.7","status":"affected"},{"version":">= 6.0.0, < 6.0.5","status":"affected"}]}],"references":[{"url":"https://github.com/kamailio/kamailio/security/advisories/GHSA-6m86-m342-g48m","name":"https://github.com/kamailio/kamailio/security/advisories/GHSA-6m86-m342-g48m","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-08T19:58:08.565Z"},"source":{"advisory":"GHSA-6m86-m342-g48m","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-08T20:19:26.241924Z","id":"CVE-2026-39864","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-08T20:19:53.226Z"}}]}}}