Incorrect authorization in Red Hat build of Keycloak 26.4
Priority LOW 29CWE-840Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-863.
Summary
A flaw was found in the keycloak-services component of Keycloak. This vulnerability allows the issuance of access and refresh tokens for disabled users, leading to unauthorized use of previously revoked privileges, via a business logic vulnerability in the Token Exchange implementation when a privileged client invokes the token exchange flow.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00482 41st percentileScored 2026-11-07
Fix Fixed org.keycloak:keycloak-services (Maven): 26.5.2, 26.4.9Red Hat: 2 advisories
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 | — | 26.4.9-1 | Patch available | CNA |
| Red Hat | Red Hat build of Keycloak 26.4 | — | 26.4-11 | Patch available | CNA |
| Red Hat | Red Hat build of Keycloak 26.4 | — | 26.4-10 | Patch available | CNA |
| Red Hat | Red Hat build of Keycloak 26.4.9 | — | — | Not affected | CNA |
| — | org.keycloak:keycloak-services (Maven) | 26.5.0 to before 26.5.2 | 26.5.2 | Patch available | GHSA-wv3h-x6c4-r867 |
| — | org.keycloak:keycloak-services (Maven) | before 26.4.9 | 26.4.9 | Patch available | GHSA-wv3h-x6c4-r867 |
- Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4.9-1 Patch available CNA
- Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-11 Patch available CNA
- Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-10 Patch available CNA
- Red Hat build of Keycloak 26.4.9 VendorRed Hat Affected — Fixed in — Not affected CNA
- org.keycloak:keycloak-services (Maven) Vendor— Affected 26.5.0 to before 26.5.2 Fixed in 26.5.2 Patch available GHSA-wv3h-x6c4-r867
- org.keycloak:keycloak-services (Maven) Vendor— Affected before 26.4.9 Fixed in 26.4.9 Patch available GHSA-wv3h-x6c4-r867
Remediation
- Fix · GHSA-wv3h-x6c4-r867 org.keycloak:keycloak-services (Maven) Fixed in 26.5.2 Advisory →
- Fix · GHSA-wv3h-x6c4-r867 org.keycloak:keycloak-services (Maven) Fixed in 26.4.9 Advisory →
Red Hat 2 advisories
- RHSA-2026:2366 Released 2026-02-09 · Red Hat rating ImportantRed Hat build of Keycloak 26.4.9 Images Security Update
- Red Hat build of Keycloak 26.4 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
- RHSA-2026:2365 Released 2026-02-09 · Red Hat rating ImportantRed Hat build of Keycloak 26.4.9 Security Update
- Red Hat build of Keycloak 26.4.9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat build of Keycloak 26.4 | Fixed | RHSA-2026:2366 |
| Red Hat build of Keycloak 26.4.9 | Fixed | RHSA-2026:2365 |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-14559
- 2026-10-03 Alias added: GHSA-wv3h-x6c4-r867
References
Other 7
- https://access.redhat.com/security/cve/CVE-2025-14559
- RHBZ#2421711
- https://github.com/keycloak/keycloak/issues/45651
- https://github.com/keycloak/keycloak/commit/2d0aa31c4830ebaad094c3762e78b884c141e659
- https://github.com/keycloak/keycloak/commit/d67349f3aa9fed5c61750619d0f9de6356aeaeff
- https://github.com/keycloak/keycloak
- https://github.com/keycloak/keycloak/releases/tag/26.5.2
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Sources
- CVE-2025-14559 · CVE Program
- CVE-2025-14559 · NVD
- FIRST EPSS
- GHSA-wv3h-x6c4-r867 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-14559 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences