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CVE-2018-10912

17
FAUCET Score

CVE-2018-10912 describes an infinite loop vulnerability in Keycloak versions prior to 4.0.0.Final, affecting Red Hat Keycloak and Red Hat Single Sign-On. This flaw allows a highly privileged, authenticated attacker to trigger an infinite loop during expired session replacement within a multi-node Keycloak cluster, leading to a Denial of Service (DoS) condition. The vulnerability has a CVSS score of 4.9 (Medium) due to its network attack vector, low attack complexity, and high impact on availability, though it requires high privileges. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.0CPE matchmatch criteria
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.4MEDIUM

CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.7
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 75th percentile among its peer group of 3,565 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

mavenpatch availablevia ghsa
Product: org.keycloak:keycloak-coreFixed in: 4.0.0
redhatpatch availablevia redhat_api
Product: Red Hat Single Sign-On 7.2.4 zip
View patch
redhatpatch availablevia redhat_api
Product: Text-Only RHOAR
View patch
redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat OpenShift Application RuntimesFixed in: keycloak
redhatno patchvia redhat_api
Product: Red Hat Single Sign-On 7Fixed in: rh-sso7-keycloak

Vendor Advisories (2)

mavenGHSA-h7j7-pw3v-3v3xmedium

Moderate severity vulnerability that affects org.keycloak:keycloak-core

Oct 18, 2018
redhatCVE-2018-10912Moderate

keycloak: infinite loop in session replacement leading to denial of service

May 25, 2018

References

access.redhat.com / errata/RHSA-2018:2428
Vendor Advisory
access.redhat.com / errata/RHSA-2019:0877
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory