Not Failing Securely ('Failing Open') Affecting datahub-upgrade package, versions <1.7.0-r0


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-MINIMOSLATEST-DATAHUBUPGRADE-18520956
  • published5 Aug 2026
  • disclosed6 Jul 2026

Introduced: 6 Jul 2026

CVE-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 Minimos:latest datahub-upgrade to version 1.7.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream datahub-upgrade package and not the datahub-upgrade package as distributed by Minimos. See How to fix? for Minimos:latest 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