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CVE-2026-9792 medium CVSS 6.5

Vulnerability in org.keycloak:keycloak-services (CVE-2026-9792)

Summary

Vulnerability in org.keycloak:keycloak-services (CVE-2026-9792). Risk of unauthorized operations or information disclosure. Exploitable via org.keycloak.protocol.oidc.

Original description

The description as published by the source.

A flaw was found in Keycloak's Client Policies, specifically within the org.keycloak.protocol.oidc component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the reject-ropc-grant executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure.

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-9792 has been found in org.keycloak:keycloak-services.
Attackers can target a specific entry point like org.keycloak.protocol.oidc over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 6.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "org.keycloak:keycloak-services CVE-2026-9792" on the vendor's site.

CVE-2026-9792 (org.keycloak:keycloak-services) — CWE-280 / CVSS v3 6.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: org.keycloak.protocol.oidc
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-280) exists in org.keycloak:keycloak-services. Attackers reach the vulnerable code path via org.keycloak.protocol.oidc without authentication.

📍 Affected scope

Check the vendor advisory for the affected versions of org.keycloak:keycloak-services. Attack surface: org.keycloak.protocol.oidc.

🔥 Severity

Severity: Medium (CVSS 6.5/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで org.keycloak:keycloak-services を使っているサービスとバージョンを洗い出す。

  2. 2
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

maven org.keycloak:keycloak-services
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"26.4.7"}]}]

References

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