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Vulnerability · Published Jul 28, 2026 · Assigned by redhat

CVE-2026-17072Gstreamer1-plugins-good: gst-plugins-good: 4-byte heap over-read in gst_matroska_parse_flac_stream_headers when parsing flac codec data in matroska containers

Low 3.3

In plain English

A low-severity out-of-bounds read in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.1%top 98.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in GStreamer's gst-plugins-good. A heap-based out-of-bounds read of 4 bytes can occur when parsing FLAC audio stream headers embedded in a Matroska or WebM container file. The vulnerability is triggered by a boundary check that does not account for the full size of the data being copied, allowing a small read past the end of the allocated buffer. An attacker could exploit this by crafting a malicious Matroska or WebM file and tricking a user into opening it, potentially leaking a small amount of adjacent heap memory.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gst-plugins-good1.01.22.0-5+deb12u4DEBIAN-CVE-2026-17072
Debian:13gst-plugins-good1.0no fix listedDEBIAN-CVE-2026-17072
Debian:14gst-plugins-good1.01.28.6-1DEBIAN-CVE-2026-17072
Ubuntu:22.04:LTSgst-plugins-good1.01.20.3-0ubuntu1.10USN-8863-1
Ubuntu:22.04:LTSgst-plugins-good1.01.20.3-0ubuntu1.10UBUNTU-CVE-2026-17072
Ubuntu:24.04:LTSgst-plugins-good1.01.24.2-1ubuntu1.8USN-8863-1
Ubuntu:24.04:LTSgst-plugins-good1.01.24.2-1ubuntu1.8UBUNTU-CVE-2026-17072
Ubuntu:26.04:LTSgst-plugins-good1.01.28.2-2ubuntu0.4UBUNTU-CVE-2026-17072
Ubuntu:26.04:LTSgst-plugins-good1.01.28.2-2ubuntu0.4USN-8863-1

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References