Keycloak-services: keycloak-services: indefinite access token renewal via standard token exchange v2
CVSS score
5.4
EPSS probability
—
Risk score
0.5
Published
1 d ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%63
Short explanation
A flaw exists in the Keycloak token exchange mechanism when using Standard Token Exchange V2, issuing new tokens with a fresh lifetime based on the requester client configuration. This allows an authenticated requester to indefinitely extend access for service accounts by repeatedly exchanging tokens, even if the original client is disabled.
This vulnerability allows authenticated users to indefinitely extend access for service accounts through repeated token exchanges, even after the original client has been disabled by an administrator.
What should be done?
- Follow vendor security advisories
- Review token exchange configurations
- Apply applicable updates
Chain of evidence and sources
Keycloak Standart Token Exchange V2 mekanizması, orijinal token süresini sınırlamak yerine yeni bir yaşam süresi atar.
Kimliği doğrulanmış bir talepçi, devre dışı bırakılmış istemciler için bile tokenleri tekrarlayarak erişimi süresiz uzatabilir.
Show the technical text from the sources
A flaw was found in the token exchange mechanism of Keycloak. When using Standard Token Exchange V2, the system issues new tokens with a fresh lifetime based on the requester clients configuration instead of limiting it to the original tokens expiration. This issue allows an authenticated requester to indefinitely extend access for service accounts by repeatedly exchanging tokens, even if the original client has been disabled by an administrator.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE: CWE-303
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 5.4 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | CVE CNA |
| 5.4 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-96460 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-96460 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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