{"id":"CVE-2026-5056","aliases":["ALPINE-CVE-2026-5056","ALSA-2026:49508","DEBIAN-CVE-2026-5056","EUVD-2026-50497","GHSA-w72g-mjg9-9cfg","RHSA-2026:49508","RLSA-2026:49508","UBUNTU-CVE-2026-5056","USN-8285-1"],"status":"published","title":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00341,"percentile":0.27836,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-121"],"published":"2026-05-05T00:00:00Z","modified":"2026-11-03T06:33:05Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"gst-plugins-good","fixed_in":["1.26.3-r0"],"sources":["osv"]},{"ecosystem":"AlmaLinux:10","package":"gstreamer1-plugins-good","fixed_in":["1.26.7-2.el10_2.2"],"sources":["osv"]},{"ecosystem":"AlmaLinux:10","package":"gstreamer1-plugins-good-gtk","fixed_in":["1.26.7-2.el10_2.2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"gst-plugins-good1.0","fixed_in":["1.26.2-1+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"gst-plugins-good1.0","fixed_in":["1.28.2-1"],"sources":["osv"]},{"ecosystem":"Red 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Hat:enterprise_linux:10.2","package":"gstreamer1-plugins-good","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.26.7-2.el10_2.2"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:10.2","package":"gstreamer1-plugins-good-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.26.7-2.el10_2.2"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:10.2","package":"gstreamer1-plugins-good-debugsource","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.26.7-2.el10_2.2"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:10.2","package":"gstreamer1-plugins-good-gtk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.26.7-2.el10_2.2"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:10.2","package":"gstreamer1-plugins-good-gtk-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.26.7-2.el10_2.2"}]}]},{"source":"osv","ecosystem":"Red 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Linux:10","package":"gstreamer1-plugins-good","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.26.7-2.el10_2.2"}]}]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"gst-plugins-good1.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.5-1ubuntu2.2"}]}],"versions":["1.26.0-1ubuntu2","1.26.0-1ubuntu3","1.26.2-1ubuntu1","1.26.4-1ubuntu1","1.26.5-1ubuntu1","1.26.5-1ubuntu2","1.26.5-1ubuntu2.1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"gst-plugins-good1.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.5-1ubuntu2.2"}]}],"versions":["1.26.0-1ubuntu2","1.26.0-1ubuntu3","1.26.2-1ubuntu1","1.26.4-1ubuntu1","1.26.5-1ubuntu1","1.26.5-1ubuntu2","1.26.5-1ubuntu2.1"]}],"products":[{"vendor":"gstreamer","product":"gstreamer"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-26-283/","tags":["x_research-advisory","advisory","article"]},{"url":"https://gitlab.freedesktop.org/api/v4/projects/gstreamer%2Fgstreamer/repository/files/security-advisories%2Fsa-2026-0016.md/raw?ref=main","tags":["vendor-advisory","advisory","article"]},{"url":"http://www.openwall.com/lists/oss-security/2026/05/01/1","tags":["web","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5056","tags":["advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-26-283"},{"url":"https://github.com/advisories/GHSA-w72g-mjg9-9cfg"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-5056","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:49508","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-5056","tags":["report"]},{"url":"https://bugzilla.redhat.com/2508623","tags":["report"]},{"url":"https://errata.almalinux.org/10/ALSA-2026-49508.html","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5056.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-5056","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2508623","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_49508.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-5056","tags":["advisory","report"]},{"url":"https://errata.rockylinux.org/RLSA-2026:49508","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-5056","tags":["report"]},{"url":"https://gstreamer.freedesktop.org/security/sa-2026-0016.html","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-8285-1","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-5056","title":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-07-29T19:10:33.316Z","modified":"2026-07-30T03:55:38.937Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T13:39:39.001586Z"}],"euvd":[{"id":"EUVD-2026-50497","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-07-29T19:10:33Z","modified":"2026-07-30T03:55:38Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:02:29.367786Z"}],"ghsa":[{"id":"GHSA-w72g-mjg9-9cfg","title":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This...","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-07-29T21:31:00Z","modified":"2026-07-29T21:31:08Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:09:54.918351Z"}],"nvd":[{"id":"CVE-2026-5056","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-07-29T20:17:05.337Z","modified":"2026-07-30T14:19:24.857Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:33.629616Z"}],"osv":[{"id":"ALPINE-CVE-2026-5056","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-07-29T20:17:05.337Z","modified":"2026-11-03T06:33:05.804729237Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T07:15:37.282377Z"},{"id":"CVE-2026-5056","title":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-07-29T19:10:33.316Z","modified":"2026-10-28T02:30:34.907256818Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:45:07.431113Z"},{"id":"DEBIAN-CVE-2026-5056","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.  The specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-07-29T20:17:05.337Z","modified":"2026-10-01T03:03:24.611983927Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:56.877408Z"},{"id":"RHSA-2026:49508","title":"Red Hat Security Advisory: gstreamer1-plugins-good security update","status":"published","published":"2026-08-03T10:17:36Z","modified":"2026-09-09T10:16:23Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:20.984762Z"},{"id":"RLSA-2026:49508","title":"Important: gstreamer1-plugins-good security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under the LGPL license.\n\nSecurity Fix(es):\n\n* gstreamer: GStreamer: Arbitrary code execution via stack-based buffer overflow in qtdemux (CVE-2026-5056)\n\nFor 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.","status":"published","published":"2026-08-04T12:06:38.550879Z","modified":"2026-08-04T12:30:05.56886607Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.111232Z"},{"id":"UBUNTU-CVE-2026-5056","description":"GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of UncompressedFrameConfigBox structures. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29392.","status":"published","published":"2026-05-05T00:00:00Z","modified":"2026-08-06T03:09:39.964517387Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:33.391918Z"},{"id":"ALSA-2026:49508","title":"Important: gstreamer1-plugins-good security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under the LGPL license.  \n\nSecurity Fix(es):  \n\n  * gstreamer: GStreamer: Arbitrary code execution via stack-based buffer overflow in qtdemux (CVE-2026-5056)\n\n\nFor 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.\n","status":"published","published":"2026-08-03T00:00:00Z","modified":"2026-10-29T11:30:32.989588317Z","updated_at":"2026-11-02T15:27:54.753319Z"},{"id":"USN-8285-1","title":"gst-plugins-good1.0 vulnerability","description":"It was discovered that GStreamer Good Plugins incorrectly handled certain\nMOV/MP4 media files. A remote attacker could use this issue to cause\nGStreamer Good Plugins to crash, resulting in a denial of service, or\npossibly execute arbitrary code.","status":"published","published":"2026-05-20T13:04:27Z","modified":"2026-07-31T14:35:37.691853579Z","updated_at":"2026-11-02T16:58:22.951676Z"}]}}