Summary
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):
* gstreamer1-plugins-bad-free: GStreamer: Denial of service via AV1 tile_list_obu parser byte/bit confusion (CVE-2026-52718)
* gstreamer1-plugins-bad-free: GStreamer: Out-of-bounds read via JPEG segment length validation in VA decoder (CVE-2026-52719)
* gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)
* gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)
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.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 10 | gstreamer1-plugins-bad-free | 1.26.7-2.el10_2.4 |
| AlmaLinux · 10 | gstreamer1-plugins-bad-free-devel | 1.26.7-2.el10_2.4 |
| AlmaLinux · 10 | gstreamer1-plugins-bad-free-libs | 1.26.7-2.el10_2.4 |
Vulnerabilities 4
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High 8.8
Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfb
A heap buffer overflow vulnerability was found in GStreamer's librfb (RFB/VNC client). The rectangle bounds check incorrectly validates area rather than individual dimensions, allowing a malicious VNC server to send a rectangle that extends beyond the framebu…
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High 7.1
Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validation in va decoder
An out-of-bounds read vulnerability was found in the VA JPEG decoder in GStreamer's gst-plugins-bad. The JPEG parser reads a segment length value from the bitstream without validating it against available data. A remote attacker could trick a user into openin…
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High 7.1
Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handling
A signed integer overflow vulnerability was found in GStreamer's VMnc decoder. A crafted VMnc stream with large cursor dimensions can overflow signed integer payload-size arithmetic, bypassing a length check and leading to out-of-bounds reads. A remote attack…
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Medium 6.5
Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion
A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gst_av1_parser_parse_tile_list_obu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote atta…
References
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report
https://access.redhat.com/security/cve/CVE-2026-52718
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report
https://access.redhat.com/security/cve/CVE-2026-52719
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report
https://access.redhat.com/security/cve/CVE-2026-52720
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report
https://access.redhat.com/security/cve/CVE-2026-52722
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report
https://bugzilla.redhat.com/2486328
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report
https://bugzilla.redhat.com/2486353
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report
https://bugzilla.redhat.com/2486731
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report
https://bugzilla.redhat.com/2486733
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advisory
https://errata.almalinux.org/10/ALSA-2026-36749.html