PT-2026-44185 · Red Hat · Keycloak

Asaad Mostafa + 1 · Published 2026-05-28 · Updated 2026-06-26 · CVE-2026-9794

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Keycloak (affected versions not specified)

Description A remote, unauthenticated attacker can cause information disclosure by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Markup Language Enhanced Client or Proxy) endpoint using varying client IDs. By analyzing the distinct faultstrings in the responses, the attacker can determine the protocol type of the client.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Generation of Error Message Containing Sensitive Information

Weakness Enumeration

CWE-209

Related Identifiers

CVE-2026-9794

GHSA-FQJH-8322-VGRV

Affected Products

Keycloak

References · 21

• https://bugzilla.redhat.com/show_bug.cgi?id=2482461 · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2026-9794 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-9794 · Security Note
• https://access.redhat.com/errata/RHSA-2026:25098 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:30049 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:30050 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:25097 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-fqjh-8322-vgrv · Vendor Advisory
• https://github.com/keycloak/keycloak/pull/49684 · Note
• https://github.com/keycloak/keycloak/pull/49686 · Note
• https://github.com/keycloak/keycloak/commit/05e98366773eec60878bb2a6d5da6bc7048ac3c8 · Note
• https://github.com/keycloak/keycloak/commit/dba79eb03fb9d634fda5e86e1613b8747f968518 · Note
• https://github.com/keycloak/keycloak/commit/7750e3ff823d1da8580d42c51194feb2e933b87b · Note
• https://github.com/keycloak/keycloak/issues/49428 · Note
• https://github.com/keycloak/keycloak · Note