Medium severity · published Sep 15, 2026
CVE-2026-91088
GPAC URL url.c gf_url_concatenate_ex heap-based overflow
4.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GP
GPAC · Gpac
f1219cde · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91088
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91088
github.com
https://github.com/gpac/gpac/
github.com
https://github.com/gpac/gpac/commit/afca1f1181668d85941d51ed1adf647807d5d975
github.com
https://github.com/gpac/gpac/issues/3808
github.com
https://github.com/gpac/gpac/releases/tag/abi-16.23
vuldb.com
https://vuldb.com/cve/CVE-2026-91088
vuldb.com
https://vuldb.com/submit/919757
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