Buffer overflow in Gpac
CVE-2026-90827
A vulnerability was identified in GPAC 26.07.0. This affects the function gf_node_deactivate_ex of the file scenegraph/base_scenegraph.c of the component MP4Box. Such manipulation leads to use after free. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version abi-16.23 is able to mitigate this issue. The name of the patch is 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.
Vulnerability class: Buffer Overflow
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 26.07.0
Weakness classification (CWE)
References
- vuldb.com/vuln/403329 (technical-description, vdb-entry)
- vuldb.com/vuln/403329/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90827 (third-party-advisory)
- vuldb.com/submit/914952 (third-party-advisory)
- github.com/gpac/gpac/issues/3813 (issue-tracking)
- github.com/user-attachments/files/30400423/poc_20_nstatx.zip (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-2026-90827?
- CVE-2026-90827 is a low-severity vulnerability in Gpac, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-09-14.
- How severe is CVE-2026-90827?
- Low severity. CVSS v3 base score is 3.3 out of 10.