Upstream information

CVE-2026-54291 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail SUSE
Base Score 5.9
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail CNA (GitHub)
Base Score 8.2
Vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Attack Requirements Present
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact High
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact Low
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1270405 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP7 postgresql-jdbc Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP7 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP7 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 16.0 postgresql-jdbc Affected
SUSE Linux Enterprise Server 16.1 postgresql-jdbc Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP applications 16.0 postgresql-jdbc Affected
SUSE Linux Enterprise Server for SAP applications 16.1 postgresql-jdbc Affected
openSUSE Leap 16.0 postgresql-jdbc Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4 postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5 postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP4 postgresql-jdbc Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP5 postgresql-jdbc Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP6 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP5 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP4 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP4-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP5 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP5-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP6 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP6-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 postgresql-jdbc Not affected
SUSE Manager Proxy 4.3 postgresql-jdbc Not affected
SUSE Manager Proxy LTS 4.3 postgresql-jdbc Not affected
SUSE Manager Retail Branch Server 4.3 postgresql-jdbc Not affected
SUSE Manager Retail Branch Server LTS 4.3 postgresql-jdbc Not affected
SUSE Manager Server 4.3 postgresql-jdbc Not affected
SUSE Manager Server LTS 4.3 postgresql-jdbc Not affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 postgresql-jdbc Not affected
SUSE Enterprise Storage 7.1 postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3 postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS postgresql-jdbc Not affected
SUSE Linux Enterprise High Performance Computing 15 SP6 postgresql-jdbc Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 postgresql-jdbc Not affected
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT postgresql-jdbc Not affected
SUSE Linux Enterprise Real Time 15 SP3 postgresql-jdbc Not affected
SUSE Linux Enterprise Real Time 15 SP4 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP1 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP1-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP2 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP2-BCL postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP2-ESPOS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP3 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP3-BCL postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP4 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP3 postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP3-BCL postgresql-jdbc Not affected
SUSE Linux Enterprise Server 15 SP3-LTSS postgresql-jdbc Not affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 postgresql-jdbc Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 postgresql-jdbc Not affected
SUSE Manager Proxy 4.2 postgresql-jdbc Not affected
SUSE Manager Retail Branch Server 4.2 postgresql-jdbc Not affected
SUSE Manager Server 4.2 postgresql-jdbc Not affected
SUSE Manager Server Module 4.2 postgresql-jdbc Not affected
SUSE OpenStack Cloud 7 postgresql-jdbc Not affected
SUSE OpenStack Cloud 8 postgresql-jdbc Not affected
SUSE OpenStack Cloud 9 postgresql-jdbc Not affected
SUSE OpenStack Cloud Crowbar 8 postgresql-jdbc Not affected
SUSE OpenStack Cloud Crowbar 9 postgresql-jdbc Not affected
openSUSE Leap 15.3 postgresql-jdbc Not affected
openSUSE Leap 15.4 postgresql-jdbc Not affected
openSUSE Leap 15.5 postgresql-jdbc Not affected
openSUSE Leap 15.6 postgresql-jdbc Not affected
Container Status
suse/manager/5.0/x86_64/server
suse/manager/5.0/x86_64/server-attestation
suse/multi-linux-manager/5.1/x86_64/server
suse/multi-linux-manager/5.1/x86_64/server-attestation
suse/multi-linux-manager/5.2/x86_64/server
suse/multi-linux-manager/5.2/x86_64/server-attestation
postgresql-jdbcNot affected


SUSE Timeline for this CVE

CVE page created: Mon Jul 6 22:05:14 2026
CVE page last modified: Tue Jul 7 11:36:37 2026