Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-rrv7-3mqf-hxfr
Advisory ID github_osv/GHSA-rrv7-3mqf-hxfr
Aliases CVE-2026-37978
Summary Keycloak: Information Disclosure via evaluate-scopes Admin API A flaw was found in Keycloak. A low-privilege administrator with the 'view-clients' role can exploit this by invoking the 'evaluate-scopes' Admin API endpoints with an arbitrary user ID (userId) parameter. This vulnerability allows for cross-role personally identifiable information (PII) leakage, enabling unauthorized visibility into user identities and authorizations across the realm. Exploitation is possible remotely via network access to the Admin API.
Status Published
Exploitability 0.5
Weighted Severity 4.4
Risk 2.2
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-rrv7-3mqf-hxfr/GHSA-rrv7-3mqf-hxfr.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-19T12:23:30Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/37xxx/CVE-2026-37978.json

Source Advisory: vulnrichment/CVE-2026-37978

View SSVC decision tree
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]