UnratedFix available

DEBIAN-CVE-2026-54291

Type: advisorySource: OSV1 source record

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.

Announced 6 Jul 2026Group revision 1

Original source ↗

DEBIAN-CVE-2026-54291

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-54291

libpgjava

Source reference: /affected/0/package/name

Affected versions: 42.5.4-1
Source reference: /affected/0/versions
42.5.5-0+deb12u1
Source reference: /affected/0/versions
42.6.0-1
Source reference: /affected/0/versions
42.6.0-2
Source reference: /affected/0/versions
42.7.0-1
Source reference: /affected/0/versions
42.7.1-1
Source reference: /affected/0/versions
42.7.10-1
Source reference: /affected/0/versions
42.7.11-1
Source reference: /affected/0/versions
42.7.12-1
Source reference: /affected/0/versions
42.7.13-1
Source reference: /affected/0/versions
42.7.2-1
Source reference: /affected/0/versions
42.7.3-1
Source reference: /affected/0/versions
42.7.3-2
Source reference: /affected/0/versions
42.7.5-1
Source reference: /affected/0/versions
42.7.5-2
Source reference: /affected/0/versions
42.7.6-1
Source reference: /affected/0/versions
42.7.7-1
Source reference: /affected/0/versions
42.7.7-2
Source reference: /affected/0/versions
42.7.8-1
Source reference: /affected/0/versions
42.7.8-2
Source reference: /affected/0/versions
42.7.9-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

libpgjava

Source reference: /affected/1/package/name

Affected versions: 42.7.10-1
Source reference: /affected/1/versions
42.7.11-1
Source reference: /affected/1/versions
42.7.12-1
Source reference: /affected/1/versions
42.7.13-1
Source reference: /affected/1/versions
42.7.7-1
Source reference: /affected/1/versions
42.7.7-2
Source reference: /affected/1/versions
42.7.8-1
Source reference: /affected/1/versions
42.7.8-2
Source reference: /affected/1/versions
42.7.9-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

libpgjava

Source reference: /affected/2/package/name

Affected versions: 42.7.10-1
Source reference: /affected/2/versions
42.7.11-1
Source reference: /affected/2/versions
42.7.7-1
Source reference: /affected/2/versions
42.7.7-2
Source reference: /affected/2/versions
42.7.8-1
Source reference: /affected/2/versions
42.7.8-2
Source reference: /affected/2/versions
42.7.9-1
Source reference: /affected/2/versions
Fixed versions: 42.7.12-1
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "libpgjava",
      "purl": "pkg:deb/debian/libpgjava?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "42.5.4-1",
      "42.5.5-0+deb12u1",
      "42.6.0-1",
      "42.6.0-2",
      "42.7.0-1",
      "42.7.1-1",
      "42.7.10-1",
      "42.7.11-1",
      "42.7.12-1",
      "42.7.13-1",
      "42.7.2-1",
      "42.7.3-1",
      "42.7.3-2",
      "42.7.5-1",
      "42.7.5-2",
      "42.7.6-1",
      "42.7.7-1",
      "42.7.7-2",
      "42.7.8-1",
      "42.7.8-2",
      "42.7.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54291.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "libpgjava",
      "purl": "pkg:deb/debian/libpgjava?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "42.7.10-1",
      "42.7.11-1",
      "42.7.12-1",
      "42.7.13-1",
      "42.7.7-1",
      "42.7.7-2",
      "42.7.8-1",
      "42.7.8-2",
      "42.7.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54291.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "42.7.12-1"
          }
        ]
      }
    ],
    "package": {
      "name": "libpgjava",
      "purl": "pkg:deb/debian/libpgjava?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "42.7.10-1",
      "42.7.11-1",
      "42.7.7-1",
      "42.7.7-2",
      "42.7.8-1",
      "42.7.8-2",
      "42.7.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54291.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #57875 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:32:21 GMT
Publisher date: Mon, 06 Jul 2026 19:17:08 GMT

Read the original announcement

Revision history

25 Oct 2026DEBIAN-CVE-2026-54291 · Revision 1Source updated