Buffer overflow in Gpac
CVE-2026-90794
A vulnerability was found in GPAC up to f1219cde. The affected element is the function gf_sg_script_load of the file scenegraph/vrml_tools.c of the component MP4Box. Performing a manipulation results in use after free. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version abi-16.23 is sufficient to fix this issue. The patch is named 9eb40df4448b88d6a6ce3454657c06f47eff0b24. It is advisable to upgrade the affected component.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (43.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Gpac — versions f1219cde
Weakness classification (CWE)
References
- vuldb.com/vuln/403300 (technical-description, vdb-entry)
- vuldb.com/vuln/403300/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90794 (third-party-advisory)
- vuldb.com/submit/914127 (third-party-advisory)
- github.com/gpac/gpac/issues/3799 (issue-tracking)
- github.com/Ech06/CVE_submit/blob/main/gpac_3799.md (exploit)
- github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24 (patch)
- github.com/gpac/gpac/releases/tag/abi-16.23 (patch)
- github.com/gpac/gpac/ (product)
Frequently asked questions
- What is CVE-2026-90794?
- CVE-2026-90794 is a medium-severity vulnerability in Gpac, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-09-14.
- How severe is CVE-2026-90794?
- Medium severity. CVSS v3 base score is 6.3 out of 10.