Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-gvgg-2r3r-53x7
Advisory ID github_osv/GHSA-gvgg-2r3r-53x7
Aliases CVE-2025-1391
Summary Improper Authorization in Keycloak Organization Mapper Allows Unauthorized Organization Claims This vulnerability is caused by the improper mapping of users to organizations based solely on email/username patterns. The issue is limited to the token claim level, meaning the user is not truly added to the organization but may appear as such in applications relying on these claims. The risk increases in scenarios where self-registration is enabled and unrestricted, allowing an attacker to exploit the naming pattern. The issue is mitigated if admins restrict registration or use strict validation mechanisms.
Status Published
Exploitability 0.5
Weighted Severity 4.9
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-284 Improper Access Control
System Score Found at
cvssv3.1 5.4 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/03/GHSA-gvgg-2r3r-53x7/GHSA-gvgg-2r3r-53x7.json
generic_textual MODERATE
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2346082
https://github.com/keycloak/keycloak
https://github.com/keycloak/keycloak/commit/5aa2b4c75bb474303ab807017582bc01a9f7e378
https://github.com/keycloak/keycloak/security/advisories/GHSA-gvgg-2r3r-53x7
CVE-2025-1391 https://access.redhat.com/security/cve/CVE-2025-1391
CVE-2025-1391 https://nvd.nist.gov/vuln/detail/CVE-2025-1391
RHSA-2025:2545 https://access.redhat.com/errata/RHSA-2025:2545
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:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/03/GHSA-gvgg-2r3r-53x7/GHSA-gvgg-2r3r-53x7.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/2025-02-18T17:17:45Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/1xxx/CVE-2025-1391.json

Source Advisory: vulnrichment/CVE-2025-1391

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