CVE-2026-4629

🔶 medium

Summary

A flaw was found in Keycloak. A highly privileged user with `manage-clients` permission can exploit this vulnerability by injecting a hardcoded role mapper into any client. This action allows the user to bypass existing scope restrictions and inject the `realm-admin` role into generated tokens, resulting in privilege escalation and full administrative access to the realm.

CVSS Score

6.5

Medium

EPSS Score

0.2

Exploit Probability

Published Date

2026-06-30

First Seen: 2026-07-01

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 47.6% of all 338,292 vulnerabilities in our database.

#177,181

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Jul 1, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

🏆 Discovered By

Red Hat would like to thank Daniel Peters (Operating Intelligence Inc.), Lior Moshe (Operating Intelligence Inc.), and Uri Rolls (Operating Intelligence Inc.) for reporting this issue.

SSVC data provided by CISA

Last Modified 2026-07-01

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CWE IDs (Weakness Types)

CWE-266

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
redhat	build_of_keycloak	Affected	v-

🔗 References 2

https://access.redhat.com/security/cve/CVE-2026-4629

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2450244

Exploit Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-12388	🔶 medium	6.5	0.2	A flaw was found in the Identity Provider (IdP) mapper component of Keycloak, which is used to manage how user informati...	2026-06-30
CVE-2026-14209	🔶 medium	4.3	0.2	A vulnerability was discovered in Keycloak's Admin UI extension that allows certain administrative users to bypass secur...	2026-06-30
CVE-2026-9083	🔶 medium	4.9	0.5	A flaw was found in Keycloak. A realm administrator with the "manage-realm" role can exploit this vulnerability by submi...	2026-06-25
CVE-2026-9086	⚠️ high	7.3	0.4	A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with `manage-client` ...	2026-06-25
CVE-2026-9099	⚠️ high	7.7	0.3	A flaw was found in Keycloak. A missing authorization check in the GroupResource.addChild() endpoint within the Admin RE...	2026-06-25
CVE-2026-9705	🔶 medium	6.5	0.3	A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registrati...	2026-06-25

These CVEs affect the same products