CVE-2026-13708

Name	CVE-2026-13708
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 (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1141587

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libimager-perl (PTS)	bullseye	1.012+dfsg-1	vulnerable
	bookworm	1.019+dfsg-1	vulnerable
	trixie	1.027+dfsg-1	vulnerable
	forky, sid	1.033+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libimager-perl	source	(unstable)	1.032+dfsg-1			1141587

Notes

[trixie] - libimager-perl <no-dsa> (Minor issue)
[bookworm] - libimager-perl <postponed> (Minor issue; memory leak reading JPEGs with repeated APP13 markers, DoS only in long-lived readers)
[bullseye] - libimager-perl <postponed> (Minor issue; memory leak reading JPEGs with repeated APP13 markers, DoS only in long-lived readers)
https://lists.security.metacpan.org/cve-announce/msg/41572486/
Fixed by: https://github.com/tonycoz/imager/commit/9f1c485ca3ee15dc261549e11afb356866552c3a (v1.032)