CVE-2026-89059
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.
Weakness
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.
References
- https://access.redhat.com/security/cve/CVE-2026-89059
- https://bugzilla.redhat.com/show_bug.cgi?id=2519756
- https://github.com/resteasy/resteasy/commit/7c7e6b37c8b2451a37aed9cdc6978b447456bacb
- https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2
- https://bugzilla.redhat.com/show_bug.cgi?id=2519756
- https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2
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