Buffer overflow in Gpac
CVE-2026-90686
A vulnerability was found in GPAC up to f1219cde. This affects the function gf_bt_report of the file scene_manager/loader_bt.c of the component MP4Box. The manipulation results in memory corruption. The attack may be performed from remote. The exploit has been made public and could be used. Upgrading to version abi-16.23 is able to mitigate this issue. The patch is identified as afca1f1181668d85941d51ed1adf647807d5d975. It is suggested to upgrade the affected component.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.009 (58.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Gpac — versions f1219cde
Weakness classification (CWE)
References
- vuldb.com/vuln/403219 (technical-description, vdb-entry)
- vuldb.com/vuln/403219/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90686 (third-party-advisory)
- vuldb.com/submit/914120 (third-party-advisory)
- github.com/gpac/gpac/issues/3798 (issue-tracking)
- github.com/Ech06/CVE_submit/blob/main/gpac_3798.md (exploit)
- github.com/gpac/gpac/commit/afca1f1181668d85941d51ed1adf647807d5d975 (patch)
- github.com/gpac/gpac/releases/tag/abi-16.23 (patch)
- github.com/gpac/gpac/ (product)
Frequently asked questions
- What is CVE-2026-90686?
- CVE-2026-90686 is a medium-severity vulnerability in Gpac, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-09-14.
- How severe is CVE-2026-90686?
- Medium severity. CVSS v3 base score is 5.3 out of 10.