Imager::File::JPEG up to 1.002 JPEG Marker i_readjpeg_wiol denial of service

Summaryinfo

A vulnerability was found in Imager::File::JPEG up to 1.002 and classified as problematic. Affected by this vulnerability is the function i_readjpeg_wiol of the component JPEG Marker Handler. The manipulation results in denial of service. This vulnerability is cataloged as CVE-2026-13708. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Imager::File::JPEG up to 1.002. Affected is the function i_readjpeg_wiol of the component JPEG Marker Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-13708 since 06/29/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 1.003 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-41873). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• Imager::File::JPEG

Version

• 1.002

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• 🔒

CPE 2.2info

• 🔒

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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