Summary
RESTEasy contains a JBoss project that provides frameworks to help build RESTful Web Services and RESTful Java applications. It is a fully certified and portable implementation of the JAX-RS specification.
Security Fix(es):
* resteasy-core: RESTEasy: IIOImageProvider Unbounded Image Decode (Decompression-Bomb DoS) (CVE-2026-89059)
* resteasy-core: RESTEasy: CorsFilter Reflects Arbitrary Origin with Credentials under Wildcard Config (CVE-2026-89058)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | pki-resteasy-client | 3.0.26-20.el9_8.1 |
| AlmaLinux · 9 | pki-resteasy-core | 3.0.26-20.el9_8.1 |
| AlmaLinux · 9 | pki-resteasy-jackson2-provider | 3.0.26-20.el9_8.1 |
| AlmaLinux · 9 | pki-resteasy-servlet-initializer | 3.0.26-20.el9_8.1 |
Vulnerabilities 2
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High 7.5
Resteasy-core: resteasy: iioimageprovider unbounded image decode (decompression-bomb dos)
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 enor…
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High 7.4
Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config
A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-ori…