Bug 2560938

Summary: CVE-2026-116612 gst-editing-services: gst-editing-services: arbitrary GStreamer element instantiation via untrusted project file effect bin-description [fedora-43]
Product: [Fedora] Fedora Reporter: lcelant
Component: gst-editing-servicesAssignee: Gwyn Ciesla <gwync>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: 43CC: gwync, wtaymans
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["24dce904-76b9-4c40-916c-404b797d5718"]}
Fixed In Version: Doc Type: ---
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Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2560925    

Description lcelant 2026-10-26 16:40:23 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

GStreamer Editing Services (gst-editing-services, libges) before 1.28.8 does not apply any restriction on the GStreamer pipeline description (bin-description) embedded in effect assets inside a .xges or .xptv project file. When a project is loaded via the XML formatter (ges-base-xml-formatter.c) or the Pitivi formatter (ges-pitivi-formatter.c), the asset-id field of each effect element is passed without sanitisation to ges_effect_from_description() and ges_effect_asset_id_get_type_and_bindesc() in ges/ges-effect-asset.c (lines ~300-415 in the vulnerable version). Both functions call gst_parse_bin_from_description_full() / gst_parse_bin_from_description() directly on the untrusted string, allowing instantiation of any registered GStreamer element factory. Properties on those elements (e.g. filesrc::location, souphttpsrc::location, filesink::location) can additionally be set by the project's children-properties XML attribute, which is applied verbatim via _set_child_property() (ges-base-xml-formatter.c ~line 550-571) through g_object_set_property() without any property denylist. The attack surface is greatly widened by the gesdemux GStreamer plugin (plugins/ges/gesplugin.c:42), registered at GST_RANK_PRIMARY. Advisory GStreamer-SA-2026-0090 (2026-10-08). Fix: gst-editing-services 1.28.8, MR !12647. Reporter: Sebastian Dröge (Centricular).