Vulnerability in Gpac
CVE-2026-90683
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (6.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Gpac — versions f1219cde
Weakness classification (CWE)
References
- vuldb.com/vuln/403216 (technical-description, vdb-entry)
- vuldb.com/vuln/403216/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90683 (third-party-advisory)
- vuldb.com/submit/913780 (third-party-advisory)
- github.com/gpac/gpac/issues/3823 (issue-tracking)
- github.com/r1ck9-2q/cve_summit/blob/main/Vuln GPAC MP4Box Assertion Failure ass… (exploit)
- github.com/gpac/gpac/commit/49dee5cad329cfed310c1682703df7daa47df31a (patch)
- github.com/gpac/gpac/releases/tag/abi-16.23 (patch)
- github.com/gpac/gpac/ (product)
Frequently asked questions
- What is CVE-2026-90683?
- CVE-2026-90683 is a low-severity vulnerability in Gpac, classified under Reachable Assertion. CVSS score: 3.3/10. Published 2026-09-14.
- How severe is CVE-2026-90683?
- Low severity. CVSS v3 base score is 3.3 out of 10.