4.8Medium

CVE-2026-91088

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.

What this means for your business

  • An attacker can use it only with access to the machine itself, with an ordinary user login, but only after tricking someone into an action such as opening a file or a link.

What to do

  1. 1Ask your IT team or provider whether any of your systems use the affected product.
  2. 2If you do, follow the vendor's guidance. No patch reference has been published yet.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Scoring

CVSS
4.8 (v3.1)
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
CVSS v4
2.4
Weakness
CWE-119
Assigned by
cna@vuldb.com

Dates

Published
2026-09-15
Last modified
2026-09-15
Sources
NVD

References