{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "libde265",
          "vendor": "strukturag",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.20"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-19T20:10:36.194Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/strukturag/libde265/security/advisories/GHSA-g5hj-rf9f-7vxm",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/strukturag/libde265/security/advisories/GHSA-g5hj-rf9f-7vxm"
        },
        {
          "name": "https://github.com/strukturag/libde265/commit/683cb9fa603e35840642f98765ab95cdb71cadf9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/strukturag/libde265/commit/683cb9fa603e35840642f98765ab95cdb71cadf9"
        }
      ],
      "source": {
        "advisory": "GHSA-g5hj-rf9f-7vxm",
        "discovery": "UNKNOWN"
      },
      "title": "libde265 has an unbounded memory leak via orphaned slice headers in `read_slice_NAL`"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-49337",
    "datePublished": "2026-06-19T19:53:18.817Z",
    "dateReserved": "2026-05-29T14:35:45.902Z",
    "dateUpdated": "2026-06-19T20:10:36.194Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-49337",
      "date": "2026-06-14",
      "epss": "0.00052",
      "percentile": "0.16874"
    }
  }
}