Red HatCVE-2026-89059
Red Hat RESTEasy: denial of service
High7.5CVE-2026-89059 · Published Sep 18, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Build of Keycloak Product | all versions | No fix yet |
| all versions | No fix yet | |
| Red Hat Certificate System 10 Product | all versions | No fix yet |
| Red Hat Certificate System 11 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat build of Apache Camel 4 for Quarkus 3 Product | all versions | No fix yet |
| Red Hat build of Apicurio Registry 3 Product | all versions | No fix yet |
| Red Hat build of Debezium 3 Product | all versions | No fix yet |
| Red Hat build of Quarkus Product | all versions | No fix yet |
| Red Hat, Inc.: CVE records (CNA) Product | < 6.2.19.Final | 6.2.19.Final |
| >= 7.0.0.Alpha1, < 7.0.5.Final | 7.0.5.Final |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-409
- www.cve.org/CVERecord?id=CVE-2026-89059
- nvd.nist.gov/vuln/detail/CVE-2026-89059
- access.redhat.com/security/cve/CVE-2026-89059
- bugzilla.redhat.com/show_bug.cgi?id=2519756
- github.com/resteasy/resteasy/commit/7c7e6b37c8b2451a37aed9cdc6978b447456bacb
- github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 18 | Red Hat OpenShift Container Platform 4: server-side request forgery | Critical9.3 | No fix yet |
| Sep 18 | Red Hat Netty: request smuggling | Medium6.5 | No fix yet |
| Sep 18 | Red Hat Netty: request smuggling | Medium6.5 | No fix yet |
| Sep 18 | A flaw was found in cockpit-files | Medium6.1 | No fix yet |
| Sep 18 | Red Hat cockpit-files. This vulnerability: race condition | Medium6.0 | No fix yet |
| Sep 18 | Red Hat cockpit-files: race condition | Medium6.0 | No fix yet |