CVE-2026-73473

{
  "id": "CVE-2026-73473",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-06T07:17:40.917",
  "lastModified": "2026-11-06T07:17:40.917",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072)."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "GStreamer",
          "product": "gst-plugins-good",
          "defaultStatus": "unaffected",
          "collectionURL": "https://gitlab.freedesktop.org/gstreamer/gst-plugins-good",
          "packageName": "gst-plugins-good",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.28.6",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-73473",
      "source": "[email protected]"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514915",
      "source": "[email protected]"
    },
    {
      "url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231",
      "source": "[email protected]"
    },
    {
      "url": "https://gstreamer.freedesktop.org/security/sa-2026-0072.html",
      "source": "[email protected]"
    }
  ]
}