Vulnerability · Published Sep 15, 2026 · Assigned by VulDB

CVE-2026-91090GPAC base_scenegraph.c gf_node_activate_ex stack-based overflow

Low 3.9

In plain English

A low-severity stack buffer overflow in GPAC. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)3.9Low

Exploit odds (30 days)0.2%top 93.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
n/a	GPAC	f1219cde

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C

References

VDB-403652 | GPAC base_scenegraph.c gf_node_activate_ex stack-based overflow vdb-entry, technical-description
VDB-403652 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-91090 | CVE Analysis and Report third-party-advisory
Submit #919759 | GPAC master f1219cde (2026-07-25) Stack Overflow third-party-advisory
https://github.com/gpac/gpac/issues/3810 issue-tracking
https://github.com/user-attachments/files/30399928/poc_17_nstatx.zip exploit
https://github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24 patch
https://github.com/gpac/gpac/releases/tag/abi-16.23 patch
https://github.com/gpac/gpac/ product