CVE-2026-1190 describes a flaw in Keycloak's SAML brokering where it fails to validate the NotOnOrAfter timestamp in SubjectConfirmationData when acting as a SAML client. This allows an attacker to extend the validity of SAML responses, potentially leading to prolonged session durations. The vulnerability has a low CVSS score of 3.1, indicating a network attack vector with high attack complexity and a low impact on integrity, with no impact on confidentiality or availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Red Hat | Red Hat Single Sign-On 7 | All Versions ImpactedCNA affecteddefault affected | |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | All Versions ImpactedCNA affecteddefault affected | |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | All Versions ImpactedCNA affecteddefault affected | |
| Red Hat | Red Hat Build Of Keycloak 26.4 | Range not provided by sourceCNA affecteddefault affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.