Description
A vulnerability was detected in GPAC up to f1219cde. Affected is the function gf_node_unregister of the file scenegraph/base_scenegraph.c of the component MP4Box. Performing a manipulation results in reachable assertion. Attacking locally is a requirement. The exploit is now public and may be used. Upgrading to version abi-16.23 is able to address this issue. The patch is named 49dee5cad329cfed310c1682703df7daa47df31a. It is advisable to upgrade the affected component. This is not a duplicate of CVE-2021-46237 or CVE-2021-46234.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | GPAC | f1219cde | abi-16.23 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 22.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 20.04 LTS | gpac | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gpac | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gpac | No fix yet | — |
References
- VDB-403216 | GPAC MP4Box base_scenegraph.c gf_node_unregister assertion vdb-entry technical-description
- VDB-403216 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-90683 | CVE Analysis and Report third-party-advisory
- Submit #913780 | GPAC up to commit f1219cde (2026-07-25) Denial of Service third-party-advisory
- https://github.com/gpac/gpac/issues/3823 issue-tracking
- https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln%20GPAC%20MP4Box%20Assertion%20Failure%20assert(num_instances).md exploit
- https://github.com/gpac/gpac/commit/49dee5cad329cfed310c1682703df7daa47df31a patch
- https://github.com/gpac/gpac/releases/tag/abi-16.23 patch
- https://github.com/gpac/gpac/ product