CVE-2026-5056

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Source
https://cve.org/CVERecord?id=CVE-2026-5056
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5056.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-5056
Downstream
Related
Published
2026-07-29T19:10:33Z
Modified
2026-10-08T02:51:04Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability
Details

GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

The specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.

Database specific 
{
    "cna_assigner": "zdi",
    "cwe_ids": [
        "CWE-121"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5056.json"
}
References

Affected packages

Git
gitlab.freedesktop.org/api/v4/projects/gstreamer/gstreamer/repository/files/security-advisories/sa-2026-0016.md/raw

Affected ranges

Type
GIT
Repo
https://gitlab.freedesktop.org/api/v4/projects/gstreamer/gstreamer/repository/files/security-advisories/sa-2026-0016.md/raw
Events
Introduced
a303670510771b993867ddf62bff3bce0cb988c3
Last Affected
a303670510771b993867ddf62bff3bce0cb988c3

Affected versions

Other
a303670510771b993867ddf62bff3bce0cb988c3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5056.json"