RHSA-2026:85234HighCVSS 7.5
Red Hat Security Advisory: resteasy security update
🔗 CVE IDs covered (2)
📋 Description
CVE-2026-89058 — resteasy-core: RESTEasy: CorsFilter Reflects Arbitrary Origin with Credentials under Wildcard Config CVE-2026-89059 — resteasy-core: RESTEasy: IIOImageProvider Unbounded Image Decode (Decompression-Bomb DoS)
🎯 Affected products6
- Red Hat Enterprise Linux AppStream (v. 9)
- pki-resteasy-client-0:3.0.26-20.el9_8.1.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
- pki-resteasy-core-0:3.0.26-20.el9_8.1.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
- pki-resteasy-jackson2-provider-0:3.0.26-20.el9_8.1.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
- pki-resteasy-servlet-initializer-0:3.0.26-20.el9_8.1.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
- resteasy-0:3.0.26-20.el9_8.1.src as a component of Red Hat Enterprise Linux AppStream (v. 9)
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
🔗 References (5)
- selfhttps://access.redhat.com/errata/RHSA-2026:85234
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2519756
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2519775
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_85234.json