CVE-2025-49146

pgjdbc Client Allows Fallback to Insecure Authentication Despite channelBinding=require Configuration

MEDIUM
5.9
CVSS Score
Published: June 11, 2025 at 02:32 PM UTC
Updated: June 17, 2026 at 09:30 AM UTC
2 products affected across 2 vendorsPostgreSQL Jdbc DriverPgJDBC

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

pgjdbc is an open source postgresql JDBC Driver. From 42.7.4 and until 42.7.7, when the PostgreSQL JDBC driver is configured with channel binding set to required (default value is prefer), the driver would incorrectly allow connections to proceed with authentication methods that do not support channel binding (such as password, MD5, GSS, or SSPI authentication). This could allow a man-in-the-middle attacker to intercept connections that users believed were protected by channel binding requirements. This vulnerability is fixed in 42.7.7.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

42.7.4 ≤ v < 42.7.7
v < 42.7.7
Affected range stops below 42.7.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-287NVD-CWE-noinfo

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