CVE-2018-14637

MEDIUMNVD 6.1

6.1

The SAML broker consumer endpoint in Keycloak before version 4.6.0.Final ignores expiration conditions on SAML assertions. An attacker can exploit this vulnerability to perform a replay attack.

CVSS v3: 6.1
EG Score: —
EPSS: 48.5%
KEV: Not listed

Published

November 30, 2018

Last Modified

November 21, 2024

References (2)

secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14637
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14637

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
org.keycloak:keycloak-core	1.0-alpha-1 ... 4.5.0.Final (93 versions)	4.6.0	—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 6× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-14637?

CVE-2018-14637 is a medium vulnerability published on November 30, 2018. The SAML broker consumer endpoint in Keycloak before version 4.6.0.Final ignores expiration conditions on SAML assertions. An attacker can exploit this vulnerability to perform a replay attack.

When was CVE-2018-14637 disclosed?

CVE-2018-14637 was first published in the National Vulnerability Database on November 30, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-14637 actively exploited?

CVE-2018-14637 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-14637?

CVE-2018-14637 has a CVSS v3 base score of 6.1 (NVD).

How do I remediate CVE-2018-14637?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-14637, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-14637

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