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Vulnerability details: VCID-e8vg-dt2k-a3f1
Vulnerability ID VCID-e8vg-dt2k-a3f1
Aliases CVE-2018-14637
GHSA-gf2j-7qwg-4f5x
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-285 Improper Authorization
CWE-287 Improper Authentication
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 6.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14637.json
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2018-14637
cvssv3.1 8.1 https://github.com/advisories/GHSA-gf2j-7qwg-4f5x
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-gf2j-7qwg-4f5x
generic_textual HIGH https://github.com/advisories/GHSA-gf2j-7qwg-4f5x
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-14637
cvssv3 8.1 https://nvd.nist.gov/vuln/detail/CVE-2018-14637
cvssv3.1 8.1 https://nvd.nist.gov/vuln/detail/CVE-2018-14637
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-14637
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14637.json
https://api.first.org/data/v1/epss?cve=CVE-2018-14637
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14637
https://github.com/advisories/GHSA-gf2j-7qwg-4f5x
https://github.com/keycloak/keycloak/commit/0fe0b875d63cce3d2855d85d25bb8757bce13eb1
https://nvd.nist.gov/vuln/detail/CVE-2018-14637
1627851 https://bugzilla.redhat.com/show_bug.cgi?id=1627851
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14637.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/advisories/GHSA-gf2j-7qwg-4f5x
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-14637
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-14637
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-14637
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.48457
EPSS Score 0.00252
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T07:58:50.839609+00:00 ProjectKB MSRImporter Import https://raw.githubusercontent.com/SAP/project-kb/master/MSR2019/dataset/vulas_db_msr2019_release.csv 37.0.0