CVE-2026-91088

Medium

Description

A vulnerability has been found in GPAC up to f1219cde. This issue affects the function gf_url_concatenate_ex of the file utils/url.c of the component URL Handler. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. Upgrading to version abi-16.23 is capable of addressing this issue. The identifier of the patch is afca1f1181668d85941d51ed1adf647807d5d975. It is advisable to upgrade the affected component.

SeverityMedium

CVSS4.8

Exploit probability—

ProductGpac

PublishedSep 15, 2026

First seenSep 15, 2026

Weakness typeCWE-122CWE-122 CWE-119Memory buffer bounds error

How to fix

Patches

github.com/gpac/gpac/commit/afca1f1181668d85941d51ed1adf647807d5d975
github.com/gpac/gpac/releases/tag/abi-16.23

Affected products

Product	Affected versions	Fixed in
gpac gpac	f1219cde	—

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