MariaDB has Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials — GHSA-42R5-VHPQ-M858

Summary

### Summary When PAM (dialog) authentication is used, the connector can be coerced into sending the account password in cleartext over an insecure connection. A hostile or man-in-the-middle server can trigger this with the default configuration, disclosing the user's password. ### Details The mysql_clear_password plugin is gated behind a secure connection: the driver refuses to transmit the password in cleartext…

Timeline

Published by source

2026-08-28

Risk context

• Reported severity or threat level: medium.
• Reported CVSS score: 5.9 out of 10.
• Review exposure for the affected product or family: npm: mariadb.

Product

npm: mariadb

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

GHSA-42R5-VHPQ-M858

Source

GitHub

Vendor

GitHub

Published by source

2026-08-28

Last source activity

2026-08-28

Additional identifiers

CVE-2026-55854

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.