{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "683cb9fa603e35840642f98765ab95cdb71cadf9"
            }
          ],
          "repo": "https://github.com/strukturag/libde265",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-g5hj-rf9f-7vxm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49337.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "1.0.20"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted sequence of H.265 NAL units causes `decoder_context::read_slice_NAL()` (`libde265/decctx.cc:481`) to attach slice headers to a finished picture object\nthat has no active image unit, resulting in attacker-controlled unbounded heap growth. The retained headers are never freed until the picture is released, which may not happen during continuous streaming. Version 1.0.20 patches the issue.",
  "id": "CVE-2026-49337",
  "modified": "2026-07-08T05:38:54.638595082Z",
  "published": "2026-06-19T19:53:18.817Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49337.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/strukturag/libde265/security/advisories/GHSA-g5hj-rf9f-7vxm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49337"
    },
    {
      "type": "FIX",
      "url": "https://github.com/strukturag/libde265/commit/683cb9fa603e35840642f98765ab95cdb71cadf9"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libde265 has an unbounded memory leak via orphaned slice headers in `read_slice_NAL`"
}