CVE-2026-3121: redhat build_of_keycloak Incorrect Privilege Assignment
Vulnerability summary
CVE-2026-3121 is a high (CVSS 7.2) Incorrect Privilege Assignment vulnerability in redhat build_of_keycloak. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 44.1% of scored vulnerabilities.
Timeline
- 26-03-2026PublishedVulnerability first disclosed.
- 02-04-2026Last modifiedVulnerability information updated.
Description
A flaw was found in Keycloak. An administrator with `manage-clients` permission can exploit a misconfiguration where this permission is equivalent to `manage-permissions`. This allows the administrator to escalate privileges and gain control over roles, users, or other administrative functions within the realm. This privilege escalation can occur when admin permissions are enabled at the realm level.
CVSS metrics
5 scores · 5 sources · 1 version- CVE.orgCNA6.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · WolfiEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · MavenEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NDiffers
EPSS trend
Probability
0.53%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
+0.06 pp
From 0.47% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard8 products
- keycloak-26.3-iamguarded-compatAll versions (No fix recorded)
- keycloak-26.4All versions (No fix recorded)
- keycloak-26.4-iamguarded-compatAll versions (No fix recorded)
- keycloak-fips-26.3-iamguarded-fipsAll versions (No fix recorded)
- keycloak-fips-26.4All versions (No fix recorded)
Redhat4 products
Wolfi2 products
- keycloak-26.4All versions (No fix recorded)
- keycloak-26.4-iamguarded-compatAll versions (No fix recorded)
Org.keycloak1 product
- keycloak-services< 26.5.6
4 vendors · 15 products
References
8 links- github.com/keycloak/keycloakPACKAGE