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CVE-2026-91088— GPAC URL url.c gf_url_concatenate_ex heap-based overflow

Quick assessment

Affected
n/a GPAC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 GPAC 版本 f1219cde 及更早版本中发现了一个漏洞。该问题影响组件“URL 处理程序”中文件 里的 函数。该操作会导致基于堆的缓冲区溢出。攻击者必须通过本地路径进行利用。升级到版本 可以解决此问题。该补丁的标识符为 。建议升级受影响的组件。

CVSS 4.8 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-91088

Vulnerability Information
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Vulnerability Title
GPAC URL url.c gf_url_concatenate_ex heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- GPAC f1219cde cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-91088

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III. Intelligence Information for CVE-2026-91088

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Patches & Fixes for CVE-2026-91088 (1)

Proof of Concept for CVE-2026-91088 (1)

Vendor Pages for CVE-2026-91088 (1)

Same Patch Batch · n/a · 2026-09-15 · 6 CVEs total

CVE-2026-91087 7.3 HIGH GPAC Compositor media_object.c gf_mo_get_od_id use after free
CVE-2026-91089 6.3 MEDIUM GPAC base_scenegraph.c gf_node_get_name_and_id use after free
CVE-2026-91086 6.3 MEDIUM GPAC MPEG Video Reframer reframe_mpgvid.c mpgviddmx_process heap-based overflow
CVE-2026-91091 4.3 MEDIUM GPAC Node Insertion base_scenegraph.c gf_node_list_insert_child memory corruption
CVE-2026-91090 3.9 LOW GPAC base_scenegraph.c gf_node_activate_ex stack-based overflow

IV. Related Vulnerabilities

Same product: GPAC
Same vendor: n/a
Same weakness: CWE-122

V. Comments for CVE-2026-91088

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