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  4. CVE 2026 88770 keycloak services keycloak services device
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Back to active CVEs
Medium · CVSS 6.5CVE-2026-88770

Keycloak-services: keycloak-services: device authorization grant issues tokens to brute-force-locked accountsCVE-2026-88770

Answer in brief

CVE-2026-88770 records a Medium severity (CVSS 6.5) vulnerability in Keycloak-services: keycloak-services: device authorization grant issues tokens to brute-force-locked accounts. The current sources do not mark it as known exploited. The current feed maps Red Hat/keycloak/rhbk-openshift-rhel9 (generic), Red Hat/keycloak-services (generic), Red Hat/rhbk/keycloak-rhel9 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 10, 2026Updated Sep 10, 2026Source checked Oct 25, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/keycloak/rhbk-openshift-rhel9 (generic), Red Hat/keycloak-services (generic), Red Hat/rhbk/keycloak-rhel9 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/keycloak/rhbk-openshift-rhel9generic*Not reported
Red Hat/keycloak-servicesgeneric*Not reported
Red Hat/rhbk/keycloak-rhel9generic*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/keycloak/rhbk-openshift-rhel9, Red Hat/keycloak-services, Red Hat/rhbk/keycloak-rhel9.
  2. 2Review the reported fix. Source-reported workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Evidence timeline and material changes

  1. Published upstream

    Sep 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 10, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source description

A flaw was found in the Device Authorization Grant flow of Keycloak, an identity and access management solution. The issue occurs because the token redemption process fails to check if a user account is currently locked due to brute-force protection. If an attacker has an active session for a locked account, they can complete the device login process and receive new security tokens. This allows the attacker to maintain access to the account even when it should be temporarily disabled to prevent unauthorized entry.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • YunaiV/zhijiantianya ruoyi-vue-pro SMS Code Verification SmsCodeServiceImpl.java SmsCodeServiceImpl.validateSmsCode0 excessive authenticationAlso CWE-307

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-307
Source
CVE List V5
Source checked
Oct 25, 2026
References
2 linked sources
Open source record