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CVE-2026-108539— GPAC MP4Box filter_queue.c gf_fq_pop use after free

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 26.07.0 及更早版本中发现了一个安全漏洞。该漏洞影响 MP4Box 组件中文件 的 函数。通过特定操纵可导致“释放后使用”（use-after-free）类型的漏洞。该攻击可由远程发起。目前，利用该漏洞的 PoC 代码已公开，可被直接使用。厂商在披露初期已被联系，但对此未作任何回应。

CVSS 6.3 · Medium EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a GPAC 26.07 affected
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I. Basic Information for CVE-2026-108539

Vulnerability Information
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Vulnerability Title
GPAC MP4Box filter_queue.c gf_fq_pop use after free
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in GPAC up to 26.07.0. This affects the function gf_fq_pop of the file filter_core/filter_queue.c of the component MP4Box. Performing a manipulation results in use after free. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- GPAC 26.07 cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-108539

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-108539

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Other References for CVE-2026-108539 (1)

Same Patch Batch · n/a · 2026-10-11 · 4 CVEs total

CVE-2026-108538 6.3 MEDIUM GPAC MP4Box os_thread.c gf_mx_v use after free
CVE-2026-108770 5.3 MEDIUM Appwrite Browser Screenshot Service Get.php PublicHostname server-side request forgery
CVE-2026-108572 4.3 MEDIUM Casdoor Proxy Validation cas.go CasP3ProxyValidate server-side request forgery

IV. Related Vulnerabilities

Same product: GPAC
Same vendor: n/a
Same weakness: CWE-416

V. Comments for CVE-2026-108539

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