Skip to content
Fencer Vulns
low 3.3

CVE-2026-17072 json

Gstreamer1-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

published 2026-07-28 3 mo ago modified 2026-11-06 2 d ago also EUVD-2026-49750

cvss
3.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

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.

Patch / fix

  • gst-plugins-good1.0 Debian 12 1.22.0-5+deb12u4
  • gst-plugins-good1.0 Debian 14 1.28.6-1

debian advisories DEBIAN-CVE-2026-17072

  • gst-plugins-good1.0 Ubuntu 22.04 LTS 1.20.3-0ubuntu1.10
  • gst-plugins-good1.0 Ubuntu 24.04 LTS 1.24.2-1ubuntu1.8
  • gst-plugins-good1.0 Ubuntu 26.04 LTS 1.28.2-2ubuntu0.4
  • gst-plugins-good1.0 Ubuntu Pro 16.04 LTS 1.8.3-1ubuntu0.5+esm4
  • gst-plugins-good1.0 Ubuntu Pro 18.04 LTS 1.14.5-0ubuntu1~18.04.3+esm4
  • gst-plugins-good1.0 Ubuntu Pro 20.04 LTS 1.16.3-0ubuntu1.3+esm4

ubuntu advisories UBUNTU-CVE-2026-17072

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-17072 updated cvss 3.3

gstreamer1-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

  • Red Hat Enterprise Linux 6 gstreamer-plugins-good Red Hat Enterprise Linux 7 gstreamer-plugins-good, gstreamer1-plugins-good
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 gstreamer1-plugins-good, gstreamer1-plugins-good-gtk Red Hat Enterprise Linux 9 gstreamer1-plugins-good, gstreamer1-plugins-good-gtk Red Hat Enterprise Linux 10 gstreamer1-plugins-good
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
3 mo ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.