Red HatCVE-2026-89059
Red Hat RESTEasy: denial of service
Fix: upgrade to Red Hat or later (4 fixed versions below)
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 JBoss Enterprise Application Platform 8.1 Product | all versions | No fix yet |
| 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/errata/RHSA-2026:83082
- access.redhat.com/errata/RHSA-2026:83520
- access.redhat.com/errata/RHSA-2026:83670
- access.redhat.com/errata/RHSA-2026:85234
- access.redhat.com/errata/RHSA-2026:92408
- access.redhat.com/errata/RHSA-2026:95221
- access.redhat.com/errata/RHSA-2026:95466
- access.redhat.com/errata/RHSA-2026:95504
- access.redhat.com/errata/RHSA-2026:95505
- access.redhat.com/errata/RHSA-2026:95887
- access.redhat.com/errata/RHSA-2026:96077
- 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