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CVE-2026-9791
medium
CVSS 4.3
Authorization Flaw in org.keycloak:keycloak-server-spi-private (CVE-2026-9791)
Summary
vulnerability in org.keycloak:keycloak-server-spi-private (CVE-2026-9791). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-9791** has been found in org.keycloak:keycloak-server-spi-private.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "org.keycloak:keycloak-server-spi-private CVE-2026-9791" on the vendor's site.
CVE-2026-9791 (org.keycloak:keycloak-server-spi-private) — CWE-863 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
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
**incorrect authorization** (CWE-863) exists in org.keycloak:keycloak-server-spi-private.
📍 Affected scope
org.keycloak:keycloak-server-spi-private — .
🔥 Severity
Severity: Medium (CVSS 4.3/10). 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. Run `grep -r 'org.keycloak:keycloak-server-spi-private' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'org.keycloak:keycloak-server-spi-private' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `org.keycloak:keycloak-server-spi-private` を grep し、稼働しているサービス・バージョンを把握する。
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7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
maven
org.keycloak:keycloak-server-spi-private
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"26.4.7"}]}]
maven
org.keycloak:keycloak-services
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"26.4.7"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-9791
- package https://github.com/keycloak/keycloak
- web https://access.redhat.com/security/cve/CVE-2026-9791
- web https://bugzilla.redhat.com/show_bug.cgi?id=2482458
- web https://github.com/advisories/GHSA-4q93-v92x-p89f
- web https://access.redhat.com/errata/RHSA-2026:25098
- web https://access.redhat.com/errata/RHSA-2026:25097
- web https://access.redhat.com/errata/RHSA-2026:30049
- web https://access.redhat.com/errata/RHSA-2026:30050
- web https://github.com/keycloak/keycloak/issues/49431
- web https://github.com/keycloak/keycloak/pull/49541
- web https://github.com/keycloak/keycloak/pull/49678
- web https://github.com/keycloak/keycloak/pull/49680
- web https://github.com/keycloak/keycloak/commit/0e706e7c83d1e971b48656ad9e674eec6adc225b
- web https://github.com/keycloak/keycloak/commit/a77c60f2f3e0793046add44120579871e92553df
- web https://github.com/keycloak/keycloak/commit/f19e1f2b4e998116d4e321f50ecf99c0f87b862f