CVE-2026-89059highCWE-409

CVE-2026-89059: high-severity vulnerability in Red Hat RESTEasy

Resteasy-core: resteasy: iioimageprovider unbounded image decode (decompression-bomb dos)

Published · Updated

Follow this CVE+ Monitor Red Hat Enterprise Linux+ Monitor Red Hat build of Keycloak

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.9%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3Red Hat · Red Hat build of Apicurio Registry 3Red Hat · Red Hat build of Debezium 3Red Hat · Red Hat Build of KeycloakRed Hat · Red Hat build of Quarkus 3.27.6.redhatRed Hat · Red Hat build of Quarkus 3.33.4.redhatRed Hat · Red Hat Certificate System 10Red Hat · Red Hat Certificate System 11Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Fuse 7Red Hat · Red Hat JBoss Enterprise Application Platform 7Red Hat · Red Hat JBoss Enterprise Application Platform 8Red Hat · Red Hat JBoss Enterprise Application Platform 8.1Red Hat · Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat · Red Hat Satellite 6Red Hat · Red Hat Single Sign-On 7Red Hat · RESTEasy
Related CVEs — Red Hat RESTEasy

In the same product, most dangerous first.

CVE-2024-1635HIGHUndertow: out-of-memory error after several closed connections with wildfly-http-client protocolEPSS 4.6%CVE-2026-93567HIGHIo.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/2 connect with host-controlled :authorityEPSS 2.6%CVE-2026-93569HIGHIo.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authorityEPSS 2.2%CVE-2024-3653MEDIUMUndertow: learningpushhandler can lead to remote memory dos attacksEPSS 1.9%CVE-2024-1023MEDIUMIo.vertx/vertx-core: memory leak due to the use of netty fastthreadlocal data structures in vertxEPSS 1.7%CVE-2024-3884HIGHUndertow: outofmemory when parsing form data encoding with application/x-www-form-urlencodedEPSS 1.5%