Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant
Priority MEDIUM 41CWE-358Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.
Summary
A flaw was found in Keycloak. A vulnerability exists in the jwt-authorization-grant flow where the server fails to verify if an Identity Provider (IdP) is enabled before issuing tokens. The issuer lookup mechanism (lookupIdentityProviderFromIssuer) retrieves the IdP configuration but does not filter for isEnabled=false. If an administrator disables an IdP (e.g., due to a compromise or offboarding), an entity possessing that IdP's signing key can still generate valid JWT assertions that Keycloak accepts, resulting in the issuance of valid access tokens.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00492 42nd percentileScored 2026-11-07
Fix Fixed org.keycloak:keycloak-services (Maven): 26.5.3, 26.4.9Red Hat: 2 advisories
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 26.5.3 | 26.5.3 | Patch available | GHSA-37gf-gmxv-74wv |
| — | org.keycloak:keycloak-services (Maven) | before 26.4.9 | 26.4.9 | Patch available | GHSA-37gf-gmxv-74wv |
- 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 26.5.3 Fixed in 26.5.3 Patch available GHSA-37gf-gmxv-74wv
- org.keycloak:keycloak-services (Maven) Vendor— Affected before 26.4.9 Fixed in 26.4.9 Patch available GHSA-37gf-gmxv-74wv
Remediation
- Fix · GHSA-37gf-gmxv-74wv org.keycloak:keycloak-services (Maven) Fixed in 26.5.3 Advisory →
- Fix · GHSA-37gf-gmxv-74wv 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: Important. 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-2026-1486
- 2026-10-03 Alias added: GHSA-37gf-gmxv-74wv
References
Other 7
- https://access.redhat.com/security/cve/CVE-2026-1486
- RHBZ#2433347
- https://github.com/keycloak/keycloak/issues/46146
- https://github.com/keycloak/keycloak/pull/46148
- https://github.com/keycloak/keycloak/commit/176dc8902ce552056d3648c4601d519afc6fb043
- https://github.com/keycloak/keycloak/commit/8316e8538f0037d9f998181e73122cff93a94035
- https://github.com/keycloak/keycloak
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Sources
- CVE-2026-1486 · CVE Program
- CVE-2026-1486 · NVD
- FIRST EPSS
- GHSA-37gf-gmxv-74wv · GitHub Advisory Database · CC BY 4.0
- CVE-2026-1486 · 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