CVE-2026-89058

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-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.
Configurations

No configuration.

History

29 Oct 2026, 22:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:92408 -

19 Oct 2026, 16:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:85234 -

16 Oct 2026, 00:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:83520 -

15 Oct 2026, 19:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:83082 -

05 Oct 2026, 17:17

Type Values Removed Values Added
CWE CWE-346

19 Sep 2026, 14:17

Type Values Removed Values Added
CWE CWE-942

18 Sep 2026, 13:18

Type Values Removed Values Added
References () https://github.com/resteasy/resteasy/security/advisories/GHSA-972r-f3fv-whm3 - () https://github.com/resteasy/resteasy/security/advisories/GHSA-972r-f3fv-whm3 -

18 Sep 2026, 10:17

Type Values Removed Values Added
References
  • () https://github.com/resteasy/resteasy/commit/efeb2b7 -

18 Sep 2026, 08:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-18 08:17

Updated : 2026-10-29 22:17


NVD link : CVE-2026-89058

Mitre link : CVE-2026-89058

CVE.ORG link : CVE-2026-89058


JSON object : View

Products Affected

No product.

CWE
CWE-346

Origin Validation Error

CWE-942

Permissive Cross-domain Security Policy with Untrusted Domains