What is CVE-2014-3651?

CVE-2014-3651 is a high-severity vulnerability in Keycloak, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2017-12-29.

How severe is CVE-2014-3651?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Keycloak

CVE-2014-3651

JBoss KeyCloak before 1.0.3.Final allows remote attackers to cause a denial of service (resource consumption) via a large value in the size parameter to auth/qrcode, related to QR code generation.

Vulnerability class: DoS (Denial of Service)

Published 2017-12-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.016 (75.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Keycloak

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

bugzilla.redhat.com/show_bug.cgi (VDB Entry, Third Party Advisory, Issue Tracking)
issues.jboss.org/browse/KEYCLOAK-699 (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2014-3651?: CVE-2014-3651 is a high-severity vulnerability in Keycloak, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2017-12-29.
How severe is CVE-2014-3651?: High severity. CVSS v3 base score is 7.5 out of 10.