{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.17"
              }
            ]
          }
        ]
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e06ff6c64741cc1675fd3296615910f532f6b1a1"
            }
          ],
          "repo": "https://github.com/pjsip/pjproject",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8fj4-fv9f-hjpc"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28799.json"
  },
  "details": "PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework (evsub.c) that is triggered during presence unsubscription (SUBSCRIBE with Expires=0). This issue has been patched in version 2.17.",
  "id": "CVE-2026-28799",
  "modified": "2026-04-01T23:10:30.408912520Z",
  "published": "2026-03-06T06:36:55.109Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28799.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pjsip/pjproject/security/advisories/GHSA-8fj4-fv9f-hjpc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28799"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pjsip/pjproject/commit/e06ff6c64741cc1675fd3296615910f532f6b1a1"
    }
  ],
  "schema_version": "1.7.3",
  "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": "PJSIP: Heap use-after-free in PJSIP presence subscription termination handler"
}