Keycloak-services: keycloak-services: smtp starttls plaintext credential and message downgrade (Red Hat Red Hat Build of Keycloak)

CVE-2026-107121
MEDIUM 6.5

En bref

Source
NVD
EPSS
EPSS 0.08 % · centile 0 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Awaiting Analysis

Description

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An attacker who can intercept network traffic can exploit this to capture sensitive email credentials and message content in plain text.

Faiblesses (CWE)

  • CWE-319 — Transmission en clair d'informations sensibles

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:Nredhat
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:NNVD · secalert@redhat.com (Secondary)

Références européennes

Produits affectés

ProduitVersions
Red Hat · Red Hat Build of Keycloak
Red Hat · Red Hat Build of Keycloak
Red Hat · Red Hat Single Sign-On 7

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD