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CVE-2026-13708— Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol

Quick assessment

Affected
TONYC Imager::File::JPEG
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.

TONYC Imager::File::JPEG是TONYC个人开发者的一款JPEG图像处理模块。 TONYC Imager::File::JPEG 1.003之前版本存在资源管理错误漏洞，该漏洞源于在i_readjpeg_wiol中读取带有重复APP13标记的JPEG文件时，对每个APP13标记分配新缓冲区后未释放先前指针，造成堆内存泄漏，在长期运行过程中累积泄漏并耗尽可用内存，导致拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
TONYC Imager::File::JPEG < 1.003 affected
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I. Basic Information for CVE-2026-13708

Vulnerability Information
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Vulnerability Title
Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol
Source: CVE Program / CVE List V5
Vulnerability Description
Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol. i_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read. In a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service. The same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
TONYC Imager::File::JPEG 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TONYC Imager::File::JPEG是TONYC个人开发者的一款JPEG图像处理模块。 TONYC Imager::File::JPEG 1.003之前版本存在资源管理错误漏洞，该漏洞源于在i_readjpeg_wiol中读取带有重复APP13标记的JPEG文件时，对每个APP13标记分配新缓冲区后未释放先前指针，造成堆内存泄漏，在长期运行过程中累积泄漏并耗尽可用内存，导致拒绝服务。
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
TONYC Imager::File::JPEG 0 ~ 1.003 -

II. Public POCs for CVE-2026-13708

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III. Intelligence Information for CVE-2026-13708

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Patches & Fixes for CVE-2026-13708 (1)

Other References for CVE-2026-13708 (1)

IV. Related Vulnerabilities

Same vendor: TONYC
Same weakness: CWE-401

V. Comments for CVE-2026-13708

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