{
  "threat_severity" : "Moderate",
  "public_date" : "2026-02-25T00:00:00Z",
  "bugzilla" : {
    "description" : "gstreamer: incomplete fix of CVE-2026-1940",
    "id" : "2436932",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2436932"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
    "status" : "draft"
  },
  "details" : [ "An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read.", "An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read." ],
  "acknowledgement" : "Red Hat would like to thank wooseokdotkim for reporting this issue.",
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Fix deferred",
    "package_name" : "gstreamer1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "gstreamer",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "gstreamer",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "package_name" : "gstreamer1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "gstreamer1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "mingw-gstreamer1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "gstreamer1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-1940\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-1940\nhttps://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4854\nhttps://gstreamer.freedesktop.org/security/sa-2026-0001.html\nhttps://security-tracker.debian.org/tracker/CVE-2026-1940" ],
  "name" : "CVE-2026-1940",
  "csaw" : false
}