Medium severity6.8NVD Advisory· Published May 19, 2026· Updated Jun 3, 2026
CVE-2026-37982
CVE-2026-37982
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.keycloak:keycloak-servicesMaven | < 26.6.2 | 26.6.2 |
Affected products
3Patches
Vulnerability mechanics
References
9- access.redhat.com/errata/RHSA-2026:19596nvdVendor AdvisoryWEB
- access.redhat.com/errata/RHSA-2026:19597nvdVendor AdvisoryWEB
- access.redhat.com/security/cve/CVE-2026-37982nvdVendor AdvisoryWEB
- bugzilla.redhat.com/show_bug.cginvdVendor AdvisoryWEB
- github.com/advisories/GHSA-w4p5-rfh6-cwrvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-37982ghsaADVISORY
- github.com/keycloak/keycloak/commit/2d1a24f501454a44c52daa62855419b31dc499c1ghsaWEB
- github.com/keycloak/keycloak/pull/49126ghsaWEB
- github.com/keycloak/keycloak/releases/tag/26.6.2ghsaWEB
News mentions
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