Insufficiently Protected Credentials Affecting keycloak package, versions <26.7.2-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-KEYCLOAK-19431117
- published30 Aug 2026
- disclosed28 Aug 2026
Introduced: 28 Aug 2026
NewCVE-2026-55856 (opens in a new tab)How to fix?
Upgrade Minimos:latest keycloak to version 26.7.2-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream keycloak package and not the keycloak package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. Prior to 2.7.14, 3.3.5, 3.4.3, and 3.5.9, when a Java application connects with sslMode=verify-full or sslMode=verify-ca, supplies a password, and does not configure serverSslCert or trustStore, Connector/J can accept an untrusted self-signed certificate through the fallbackToSystemTrustStore=true ephemeral trust manager and record its certFingerprint for later identity binding. The OK-packet and authentication-switch paths enforce the certificate fingerprint, but the initial-handshake path does not. HandshakeResponse.encode() can therefore build and send a mysql_clear_password response before checking certFingerprint != null && !isMitMProof(), sslMode, or whether the authentication plugin is resistant to a man-in-the-middle, and the initial path also bypasses restrictedAuth. An active man-in-the-middle or hostile server can present a self-signed certificate, claim to be MariaDB, select mysql_clear_password as the initial authentication plugin, and receive the full database password before the connection is rejected. This issue is fixed in versions 2.7.14, 3.3.5, 3.4.3, and 3.5.9.
References
- https://www.cve.org/CVERecord?id=CVE-2026-55856
- https://github.com/advisories/GHSA-g9jj-cgmh-9f38
- https://osv.dev/vulnerability/MINI-frpg-f8vm-4vrj
- https://osv.dev/vulnerability/CVE-2026-55856
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/149ec6a626376214966c01f42d48be1b80d06056
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/d90b9872322c76b05a48219be66bff1d33102f8a
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.3
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.9
- https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-g9jj-cgmh-9f38
- https://hackerone.com/reports/3777370
- https://jira.mariadb.org/browse/CONJ-1325