| Title | GPAC master f1219cde (2026-07-25) Use After Free |
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| Description | A heap-use-after-free vulnerability exists in GPAC master (commit f1219cde, 2026-07-25). The issue occurs in the gf_mo_get_od_id function in compositor/media_object.c at line 1196 during proto instantiation via MP4Box -info. A freed media object is accessed when instantiating a proto from an untrusted embedded scene graph. The call chain is: gf_inline_get_proto_lib -> gf_sg_proto_instantiate -> gf_node_traverse. The vulnerability can be triggered with: MP4Box -info poc. PoC and ASan crash log are available in the GitHub issue report. |
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| Source | ⚠️ https://github.com/gpac/gpac/issues/3807 |
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| User | wsstssw (UID 100468) |
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| Submission | 08/09/2026 14:35 (1 month ago) |
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| Moderation | 09/14/2026 20:00 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 403649 [GPAC up to f1219cde Compositor media_object.c gf_mo_get_od_id use after free] |
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| Points | 20 |
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