keycloak: auth permitted with expired certs in SAML client
Published Aug 1, 2018
5.4
MEDIUMCVSS 3.0
EPSS 0.35%
Description
It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks.
Affected products
-
- Version 3.4.3.FinalStatusaffectedConstraints-
- Version
Configuration 2
- 7.2
Running on/with
- 6.0
- 7.0
No data.
Red Hat Single Sign-On 7.2 for RHEL 6
rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el6
Fixed · RHSA-2018:3592
Red Hat Single Sign-On 7.2 for RHEL 7
rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el7
Fixed · RHSA-2018:3593
Red Hat Single Sign-On 7.2.5 zip
server
Fixed · RHSA-2018:3595
Text-Only RHOAR
n/a
Fixed · RHSA-2019:0877
Red Hat Fuse 7
keycloak
Will not fix
Red Hat Mobile Application Platform 4
keycloak
Out of support scope
Red Hat OpenShift Application Runtimes
keycloak
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Single Sign-On 7.2 for RHEL 6 | rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el6 | Fixed | RHSA-2018:3592 |
| Red Hat Single Sign-On 7.2 for RHEL 7 | rh-sso7-keycloak-0:3.4.14-1.Final_redhat_00001.1.jbcs.el7 | Fixed | RHSA-2018:3593 |
| Red Hat Single Sign-On 7.2.5 zip | server | Fixed | RHSA-2018:3595 |
| Text-Only RHOAR | n/a | Fixed | RHSA-2019:0877 |
| Red Hat Fuse 7 | keycloak | Will not fix | n/a |
| Red Hat Mobile Application Platform 4 | keycloak | Out of support scope | n/a |
| Red Hat OpenShift Application Runtimes | keycloak | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
AV:N/AC:L/Au:S/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.35% (0.00352) | 26.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.35% (0.00352) | 26.79th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00053) | 13.65th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00087) | 39.06th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.09% (0.00087) | 36.41th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00070) | 28.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.25% (0.01247) | 30.57th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (11)
- https://access.redhat.com/errata/RHSA-2018:3592 vendor-advisoryx_refsource_REDHATVendor Advisory
- https://access.redhat.com/errata/RHSA-2018:3593 vendor-advisoryx_refsource_REDHATVendor Advisory
- https://access.redhat.com/errata/RHSA-2018:3595 vendor-advisoryx_refsource_REDHATVendor Advisory
- https://access.redhat.com/errata/RHSA-2019:0877 vendor-advisoryx_refsource_REDHATVendor Advisory
- https://access.redhat.com/security/cve/CVE-2018-10894 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1599434 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10894 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://github.com/advisories/GHSA-xvv8-8wh9-9fh2 Advisory
- https://github.com/keycloak/keycloak/commit/812e76c39b1e693e8f11e5549cca2c90631f372e
- https://nvd.nist.gov/vuln/detail/CVE-2018-10894
- https://www.cve.org/CVERecord?id=CVE-2018-10894
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2018:3592 | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| https://access.redhat.com/errata/RHSA-2018:3593 | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| https://access.redhat.com/errata/RHSA-2018:3595 | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| https://access.redhat.com/errata/RHSA-2019:0877 | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-10894 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1599434 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10894 | x_refsource_CONFIRMIssue TrackingPatchVendor Advisory | |
| https://github.com/advisories/GHSA-xvv8-8wh9-9fh2 | Advisory | |
| https://github.com/keycloak/keycloak/commit/812e76c39b1e693e8f11e5549cca2c90631f372e | ||
| https://nvd.nist.gov/vuln/detail/CVE-2018-10894 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-10894 |
Change history (0)
No recorded changes yet.