What’s Vulnerable › Vulnerabilities

CVE-2026-19389: Gstreamer: gstreamer1-plugins-ugly-free: gstreamer: integer overflow/underflow in asfdemux bounds checks leading to out-of-bounds read

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-09-16
• Weakness: CWE-190

Description

Multiple integer overflow and underflow vulnerabilities were found in the GStreamer gst-plugins-ugly ASF demuxer (asfdemux) when parsing header objects from crafted ASF, WMV, or WMA files. Insufficient validation of attacker-controlled length and size values can bypass bounds checks and cause out-of-bounds heap reads. This can result in application crash, denial of service, or limited information disclosure when untrusted media is processed.

Affected products

• Red Hat Enterprise Linux 10: all versions — fixed in 0:1.26.7-2.el10_2.2
• Red Hat Enterprise Linux 10.0 Extended Update Support: all versions — fixed in 0:1.24.11-1.el10_0.3
• Red Hat Enterprise Linux 9: all versions — fixed in 0:1.22.12-6.el9_8.2, 0:1.22.12-7.el9_8.4
• Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions: all versions — fixed in 0:1.18.4-4.el9_2
• Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions: all versions — fixed in 0:1.22.1-2.el9_4
• Red Hat Enterprise Linux 9.6 Extended Update Support: all versions — fixed in 0:1.22.12-4.el9_6.2

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 10 0:1.26.7-2.el10_2.2; Red Hat Enterprise Linux 10.0 Extended Update Support 0:1.24.11-1.el10_0.3; Red Hat Enterprise Linux 9 0:1.22.12-6.el9_8.2, 0:1.22.12-7.el9_8.4; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:1.18.4-4.el9_2; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:1.22.1-2.el9_4; Red Hat Enterprise Linux 9.6 Extended Update Support 0:1.22.12-4.el9_6.2. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHSA-2026:55435
• https://access.redhat.com/errata/RHSA-2026:55865
• https://access.redhat.com/errata/RHSA-2026:67882
• https://access.redhat.com/errata/RHSA-2026:67883
• https://access.redhat.com/errata/RHSA-2026:67930
• https://access.redhat.com/errata/RHSA-2026:67931
• https://access.redhat.com/security/cve/CVE-2026-19389
• https://bugzilla.redhat.com/show_bug.cgi?id=2513016
• https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12233
• https://gstreamer.freedesktop.org/releases/1.28/
• https://gstreamer.freedesktop.org/security/sa-2026-0075.html

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