MEDIUMCVSS 6.5Vulnerability
CVE-2026-9796
A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots.
Properties
- severity
- MEDIUM
- cvss_severity
- MEDIUM
- cvss_score
- 6.5
- epss_score
- 0.00379
- retrieved_at
- 2026-09-25T06:03:36+00:00
- last_source
- FIRST EPSS
- score
- 6.5
- cve_id
- CVE-2026-9796
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
- signal_observed_at
- 2026-09-11T17:55:57+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
- published_at
- 2026-05-28T05:16:41.153
- last_modified
- 2026-09-15T12:17:55.960
- epss_percentile
- 0.29018
Related Entities (4)
ENRICHED_BY (1)
→[Source]FIRST EPSS
HAS_WEAKNESS (1)
→[Weakness]Time-of-check Time-of-use (TOCTOU) Race Condition
DESCRIBED_BY (1)
→[Source]NVD
AFFECTS_PRODUCT (1)
→[Product]
Explore deeper with Ninja Signal's threat intelligence graph