High severity · published Jul 6, 2026
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
7.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IM
Imager::File::JPEG · TONYC
before 1.003 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13708
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13708
github.com
https://github.com/tonycoz/imager/commit/9f1c485ca3ee15dc261549e11afb356866552c3a.patch
metacpan.org
https://metacpan.org/release/TONYC/Imager-File-JPEG-1.003/source/Changes
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/07/06/4
