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No exploitation reportedAwaiting NVD analysis

CVE-2026-121259

Gst-plugins-bad: gst-plugins-bad: integer overflows and division by zero in jpeg 2000 decimator

No exploitation reported by the sources we read.

  • Published2026-11-03
  • WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in the GStreamer JPEG 2000 decimator in gst-plugins-bad. Crafted JPEG 2000 media can cause integer overflows or division by zero during tile processing. An application that processes the malicious media may crash, resulting in a denial of service.

Timeline

dates in UTC
  1. 2026-11-0316:30CVE publishedCNA

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-121259?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-121259?format=csv
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Versions per branch

Products declared by the CNA

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-03

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2026-121259 Red Hat Product Security15 known affected

    gst-plugins-bad: gst-plugins-bad: integer overflows and division by zero in JPEG 2000 decimator

    gstreamer1-plugins-bad-free as a component of Red Hat Enterprise Linux 10 · gstreamer1-plugins-bad-free-devel as a component of Red Hat Enterprise Linux 10 · gstreamer1-plugins-bad-free-libs as a component of Red Hat Enterprise Linux 10 · +12 more

Full record on NVD

Fix

  1. Workaround from the vendor Red Hat Product Security CVE-2026-121259 · 15 productsApplications that do not require JPEG 2000 decimation can avoid using the jp2kdecimator element and reject untrusted JPEG 2000 media before it reaches a pipeline that uses this element.
  2. No fix available, says the vendor Red Hat Product Security CVE-2026-121259 · 15 productsFix deferred

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.16.52026-11-03
  • NVDCVSS 3.16.5read 2026-11-03
  • CNAweakness (CWE)CWE-1902026-11-03
  • NVDweakness (CWE)CWE-190read 2026-11-03

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2026-11-03
Last Modified
2026-11-03
NVD status
Awaiting Analysis

Frequently asked questions

What is CVE-2026-121259?

A flaw was found in the GStreamer JPEG 2000 decimator in gst-plugins-bad. Crafted JPEG 2000 media can cause integer overflows or division by zero during tile processing. An application that processes the malicious media may crash, resulting in a denial of service.

Is CVE-2026-121259 actively exploited?

Active exploitation of CVE-2026-121259 has not been confirmed.

What is the CVSS score for CVE-2026-121259?

CVE-2026-121259 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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