How severe is CVE-2026-11986?

CVE-2026-11986 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-11986 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-11986?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-11986 have an EU (EUVD) identifier?

Yes. CVE-2026-11986 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36267.

When was CVE-2026-11986 published?

CVE-2026-11986 was published on 2026-06-11 and last updated on 2026-06-17.

CVE-2026-11986

CVE-2026-11986 is a medium-severity vulnerability with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-425.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36267
Weakness: CWE-425
Published: 2026-06-11
Last modified: 2026-06-17

Description

A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities. The issue occurs because certain bulk role-removal endpoints fail to perform granular permission checks when deleting role mappings. This allows a delegated administrator with limited permissions to remove highly privileged roles from other users or groups, potentially disrupting administrative access control.

Frequently asked questions

What is CVE-2026-11986?: A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities. The issue occurs because certain bulk role-removal endpoints fail to perform granular permission checks when deleting role mappings. This allows a delegated administrator with limited permissions to remove highly privileged roles from other users or groups, potentially disrupting administrative access control.
How severe is CVE-2026-11986?: CVE-2026-11986 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-11986 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-11986?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-11986 have an EU (EUVD) identifier?: Yes. CVE-2026-11986 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36267.
When was CVE-2026-11986 published?: CVE-2026-11986 was published on 2026-06-11 and last updated on 2026-06-17.

References

Other CWE-425 vulnerabilities

CVE-2025-26689 — Critical (CVSS 9.8): Direct request ('Forced Browsing') issue exists in CHOCO TEI WATCHER mini (IB-MCT001) all versions. If a remote…
CVE-2024-0204 — Critical (CVSS 9.8): Authentication bypass in Fortra's GoAnywhere MFT prior to 7.4.1 allows an unauthorized user to create an admin user via…
CVE-2022-45276 — Critical (CVSS 9.8): An issue in the /index/user/user_edit.html component of YJCMS v1.0.9 allows unauthenticated attackers to obtain the…
CVE-2022-26279 — Critical (CVSS 9.8): EyouCMS v1.5.5 was discovered to have no access control in the component /data/sqldata.
CVE-2021-36560 — Critical (CVSS 9.8): Phone Shop Sales Managements System using PHP with Source Code 1.0 is vulnerable to authentication bypass which leads…
CVE-2021-36745 — Critical (CVSS 9.8): A vulnerability in Trend Micro ServerProtect for Storage 6.0, ServerProtect for EMC Celerra 5.8, ServerProtect for…

Browse all CWE-425 vulnerabilities →