Bug#1153285: resteasy: CVE-2026-89059

[Moritz Mühlenhoff]

Source: resteasy
X-Debbugs-CC: team at security.debian.org
Severity: important
Tags: security

Hi,

The following vulnerability was published for resteasy.

CVE-2026-89059[0]:
| 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.

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)


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-89059
    https://www.cve.org/CVERecord?id=CVE-2026-89059

Please adjust the affected versions in the BTS as needed.