Not Failing Securely ('Failing Open') Affecting thingsboard package, versions <4.3.1.3-r8


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-THINGSBOARD-18332298
  • published28 Jul 2026
  • disclosed6 Jul 2026

Introduced: 6 Jul 2026

NewCVE-2026-54291  (opens in a new tab)
CWE-636  (opens in a new tab)
CWE-757  (opens in a new tab)

How to fix?

Upgrade Chainguard thingsboard to version 4.3.1.3-r8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thingsboard package and not the thingsboard package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

pgjdbc is an open source postgresql JDBC Driver. In releases 42.7.4 through 42.7.11, channelBinding=require connections can be silently downgraded from SCRAM-SHA-256-PLUS with channel binding to plain SCRAM-SHA-256 without it, losing the man-in-the-middle protection the setting is meant to guarantee. An attacker who can intercept the TLS connection can trigger the downgrade with a certificate whose signature algorithm has no tls-server-end-point channel-binding hash, because the bundled com.ongres.scram:scram-client returns an empty byte array instead of failing and pgJDBC ScramAuthenticator checks only that the server advertised a PLUS mechanism, without rejecting the empty binding or checking that the negotiated mechanism uses channel binding. This issue is fixed in version 42.7.12.

CVSS Base Scores

version 3.1