{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46334","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-13T18:37:30.989Z","datePublished":"2026-08-04T23:50:57.147Z","dateUpdated":"2026-08-05T14:28:03.200Z"},"containers":{"cna":{"title":"OpenSIPS: Denial of Service in SDP bandwidth parsing via QoS SDP cloning","problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","description":"CWE-476: NULL Pointer Dereference","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r"},{"name":"https://github.com/OpenSIPS/opensips/commit/8fe74b01f6fbf86c0b5e290735275530cb65e0fb","tags":["x_refsource_MISC"],"url":"https://github.com/OpenSIPS/opensips/commit/8fe74b01f6fbf86c0b5e290735275530cb65e0fb"},{"name":"https://github.com/OpenSIPS/opensips/commit/ac5309d5b8206cd3dbe1b4e01567c8db1ce31444","tags":["x_refsource_MISC"],"url":"https://github.com/OpenSIPS/opensips/commit/ac5309d5b8206cd3dbe1b4e01567c8db1ce31444"}],"affected":[{"vendor":"OpenSIPS","product":"opensips","versions":[{"version":">= 3.4.0, < 3.6.6","status":"affected"},{"version":">= 4.0.0-beta, < 4.0.0-rc1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-04T23:50:57.147Z"},"descriptions":[{"lang":"en","value":"OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions prior to 3.6.6 and 4.0.0-rc1 contain a denial of service vulnerability in the SDP bandwidth-line parsing logic. A SIP request with Content-Type: application/sdp and a malformed session-level SDP bandwidth line missing the required colon delimiter can corrupt parsed SDP bandwidth metadata. When a route or module subsequently clones the corrupted SDP state, as occurs with dialog and QoS processing, the OpenSIPS worker process crashes. An unauthenticated remote attacker can therefore trigger a crash in any configuration whose routing script parses attacker-controlled SDP and applies dialog/QoS processing. This issue has been fixed in versions 3.6.6 and 4.0.0-rc1."}],"source":{"advisory":"GHSA-rh36-mhpv-cx2r","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T14:20:44.265583Z","id":"CVE-2026-46334","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-05T14:28:03.200Z"}}]}}