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Back to active CVEs
Medium · CVSS 6.8CVE-2026-37982GHSA-W4P5-RFH6-CWRV

Keycloak: org.keycloak.authentication: keycloak: unauthorized account takeover via webauthn token replayCVE-2026-37982

Answer in brief

CVE-2026-37982 records a Medium severity (CVSS 6.8) vulnerability in Keycloak: org.keycloak.authentication: keycloak: unauthorized account takeover via webauthn token replay. The current sources do not mark it as known exploited. The current feed maps org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published May 19, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Jun 11, 2026Material review Oct 29, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.8
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 6.8. 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 org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
org.keycloak:keycloak-servicesmaven<26.6.226.6.2
org.keycloak:keycloak-servicesmaven>=0 <26.6.226.6.2

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for org.keycloak:keycloak-services, org.keycloak:keycloak-services.
  2. 2Review the reported fix. Source-reported workaround: To mitigate this issue, consider disabling WebAuthn required actions in Keycloak if they are not essential for your deployment. This will prevent the vulnerable token replay mechanism from being exploited. Consult Keycloak documentation for specific configuration steps to disable WebAuthn required actions. Note that applying configuration changes may require a service restart and could impact functionality relying on WebAuthn registration.

Evidence timeline and material changes

  1. Published upstream

    May 19, 2026

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

  2. Source modified

    Oct 29, 2026

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

  3. First seen by HOL

    Jun 11, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
  • GitHub security advisorygithub.com
Upstream source description

A flaw was found in Keycloak. This authentication vulnerability allows a remote attacker to replay `ExecuteActionsActionToken` tokens within Keycloak's WebAuthn (Web Authentication) flow. By intercepting an execute-actions email link, an attacker can register their own authenticator to a victim's account. This leads to unauthorized enrollment of a hardware-backed credential, enabling persistent account takeover.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-294
Source
CVE List V5
Source checked
Oct 29, 2026
References
10 linked sources
Open source record