{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.4.0"
              },
              {
                "fixed": "3.6.6"
              },
              {
                "introduced": "4.0.0-beta"
              },
              {
                "fixed": "4.0.0-rc1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "f3e0d5333913bcaace4c8f8711871550accca63f"
            },
            {
              "introduced": "985272ff3d7ebc5e9f24ad9f8fcf8b1d2549f1b6"
            },
            {
              "fixed": "26c0c4e3364806e77c2915b1c3e03bf9bd90dccd"
            },
            {
              "fixed": "b3621031661ed10d6af511d7c41f512075357a00"
            },
            {
              "fixed": "8fe74b01f6fbf86c0b5e290735275530cb65e0fb"
            },
            {
              "fixed": "ac5309d5b8206cd3dbe1b4e01567c8db1ce31444"
            }
          ],
          "repo": "https://github.com/opensips/opensips",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-rh36-mhpv-cx2r"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20",
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46334.json"
  },
  "details": "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.",
  "id": "CVE-2026-46334",
  "modified": "2026-09-10T03:30:22.265507369Z",
  "published": "2026-08-04T23:50:57.147Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46334.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46334"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenSIPS/opensips/commit/8fe74b01f6fbf86c0b5e290735275530cb65e0fb"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenSIPS/opensips/commit/ac5309d5b8206cd3dbe1b4e01567c8db1ce31444"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenSIPS: Denial of Service in SDP bandwidth parsing via QoS SDP cloning"
}