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CVE-2026-13523— GPAC ISOBMFF base_encoding.c data amplification

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.

GPAC是GPAC团队开源的一款开源的多媒体框架。 GPAC 26.02.0及之前版本存在资源管理错误漏洞，该漏洞源于ISOBMFF Parser组件中src/utils/base_encoding.c文件的未知部分被操纵，可能导致高度压缩的数据。

CVSS 3.3 · Low EPSS 0.16% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a GPAC 26.02 affected
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I. Basic Information for CVE-2026-13523

Vulnerability Information
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Vulnerability Title
GPAC ISOBMFF base_encoding.c data amplification
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in GPAC up to 26.02.0. This affects an unknown part of the file src/utils/base_encoding.c of the component ISOBMFF Parser. Executing a manipulation can lead to highly compressed data. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. This patch is called 297f2d8d1f493d8b241330533cd47f7da758aeb3. A patch should be applied to remediate this issue. The vendor confirms: "We added a check on inflate output size, if it surpasses 32 times the input size we stop in error. This value could be adjusted later."
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
GPAC 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GPAC是GPAC团队开源的一款开源的多媒体框架。 GPAC 26.02.0及之前版本存在资源管理错误漏洞，该漏洞源于ISOBMFF Parser组件中src/utils/base_encoding.c文件的未知部分被操纵，可能导致高度压缩的数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- GPAC 26.02 cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-13523

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III. Intelligence Information for CVE-2026-13523

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Patches & Fixes for CVE-2026-13523 (2)

Vendor Advisories for CVE-2026-13523 (1)

Same Patch Batch · n/a · 2026-06-29 · 12 CVEs total

CVE-2026-57919 7.8 HIGH Matrix42 Empirum Personal Backup 权限许可和访问控制问题漏洞
CVE-2026-13540 6.3 MEDIUM GitBucket RepositoryCreationService.scala Git.cloneRepository.setURI server-side request f
CVE-2026-13543 5.6 MEDIUM Documenso Google OAuth Login handle-oauth-callback-url.ts improper authentication
CVE-2026-13529 5.6 MEDIUM YzmCMS index.php sql injection
CVE-2026-13536 4.3 MEDIUM GotoHTTP reg.12x cross site scripting
CVE-2026-36848 Gigamon GVOS 路径遍历漏洞
CVE-2026-51219 Mz-automation lib60870 安全漏洞
CVE-2026-51218 Dave Nardella Snap7 安全漏洞
CVE-2026-51221 EIPStackGroup OpENer 安全漏洞
CVE-2026-37637 Alex Yashkin PHP File Manager 代码注入漏洞
CVE-2026-31016 Squidex 跨站请求伪造漏洞

IV. Related Vulnerabilities

Same product: GPAC
Same vendor: n/a
Same weakness: CWE-409

V. Comments for CVE-2026-13523

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