CVE-2026-89059

Name	CVE-2026-89059
Description	A flaw was found in RESTEasy's IIOImageProvider, which decodes attacker-supplied image request bodies without enforcing any limit on the declared image dimensions or pixel count. A remote, unauthenticated attacker can send a small crafted image declaring enormous dimensions to trigger a very large memory allocation, exhausting the JVM heap and resulting in a denial of service.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
resteasy (PTS)	sid	3.6.2-4	vulnerable
resteasy3.0 (PTS)	forky, sid, bookworm, trixie	3.0.26-6	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
resteasy	source	(unstable)	(unfixed)
resteasy3.0	source	(unstable)	(unfixed)

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2519756
https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2
https://redhat.atlassian.net/browse/RESTEASY-3793
Fixed by: https://github.com/resteasy/resteasy/commit/7c7e6b37c8b2451a37aed9cdc6978b447456bacb (v7.0.5.Final)