RHSA-2026:56521: Important: gstreamer1-plugins-bad-free security update
GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.Security Fix(es): gstreamer: gstreamer1-plugins-bad-free: gstreamer: heap out-of-bounds write in adpcmdec IMA/DVI ADPCM decoder (CVE-2026-19387) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Other sources
Important: gstreamer1-plugins-bad-free security update
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-freeto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2 - Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-free-debuginfoto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2 - Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-free-debugsourceto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2 - Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-freeto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2.aa - Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-free-debuginfoto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2.aa - Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-free-debugsourceto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2.aa - Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-free-develto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2 - Upgrade
Upgrade
redhat/gstreamer1-plugins-bad-free-develto a version that resolves this vulnerability.Fixed in 1.16.1-9.el8_10.2.aa - Upgrade
Upgrade
gstreamer/gstreamer1-plugins-bad-freeto a version that resolves this vulnerability.Patch CVE-2026-19387
Event History
Frequently Asked Questions
Which systems should be prioritized for review?
Systems with the gstreamer1-plugins-bad-free package installed are the relevant exposure population. The advisory also lists associated debuginfo, debugsource, and development packages, but the security fix concerns the ADPCM decoder in gstreamer1-plugins-bad-free.
What is known about exploitation requirements?
The reported flaw is a heap out-of-bounds write in the adpcmdec IMA/DVI ADPCM decoder. The supplied advisory data does not state the required attacker access, delivery vector, or whether a default configuration invokes the affected decoder.
What should be done if affected packages are present?
Apply the RHSA-2026:56521 security update for the affected Red Hat package. No alternative mitigation or configuration workaround is provided in the advisory data.