Buffer overflow in Gpac
CVE-2026-91090
A vulnerability was determined in GPAC up to f1219cde. The affected element is the function gf_node_activate_ex of the file scenegraph/base_scenegraph.c. This manipulation causes stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.23 is sufficient to fix this issue. Patch name: 9eb40df4448b88d6a6ce3454657c06f47eff0b24. The affected component should be upgraded.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (6.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.3% 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/403652 (technical-description, vdb-entry)
- vuldb.com/vuln/403652/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-91090 (third-party-advisory)
- vuldb.com/submit/919759 (third-party-advisory)
- github.com/gpac/gpac/issues/3810 (issue-tracking)
- github.com/user-attachments/files/30399928/poc_17_nstatx.zip (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-2026-91090?
- CVE-2026-91090 is a low-severity vulnerability in Gpac, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.9/10. Published 2026-09-15.
- How severe is CVE-2026-91090?
- Low severity. CVSS v3 base score is 3.9 out of 10.