CVE-2026-89059
Publication date 21 September 2026
Last updated 21 September 2026
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| resteasy | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| resteasy3.0 | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-89059
- 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
- https://access.redhat.com/security/cve/CVE-2026-89059
- https://github.com/resteasy/resteasy/commit/7c7e6b37c8b2451a37aed9cdc6978b447456bacb