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. 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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/tonycoz/imager/commit/9f1c485ca3ee15dc261549e11afb356866552c3a.patch
https://metacpan.org/release/TONYC/Imager-File-JPEG-1.003/source/Changes
http://www.openwall.com/lists/oss-security/2026/07/06/4

Configurations

No configuration.

History

06 Jul 2026, 19:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/07/06/4 -
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

06 Jul 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-06 13:16

Updated : 2026-07-06 19:16

NVD link : CVE-2026-13708

Mitre link : CVE-2026-13708

CVE.ORG link : CVE-2026-13708

JSON object : View

Products Affected

No product.

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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