pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS

Summary pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. Impact A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count. With a large enough value, the client spends an unbounded amount of CPU time...

GHSA-98QH-XJC8-98PQ pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS

Summary pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. Impact A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count. With a large enough value, the client spends an unbounded amount of CPU time...

EUVD-2026-26247

pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS...

CVE-2026-42198

A flaw was found in pgjdbc, an open-source PostgreSQL JDBC Driver. A malicious server can exploit this vulnerability by instructing the driver to perform SCRAM-SHA-256 Salted Challenge Response Authentication Mechanism Secure Hash Algorithm 256 authentication with an excessively large iteration...

GHSA-87PF-FPWV-P7M7 net-imap vulnerable to denial of service via high iteration count for `SCRAM-*` authentication

Summary When authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. Details A hostile IMAP server can send an arbitrarily large PBKDF2 iteration count in the...

Use of Blocking Code in Single-threaded, Non-blocking Context

Overview Affected versions of this package are vulnerable to Use of Blocking Code in Single-threaded, Non-blocking Context through the OpenSSL::KDF.pbkdf2hmac function during SCRAM authentication. An attacker can cause the Ruby client VM to become unresponsive by sending a large iteration count...

CVE-2026-40542

A flaw was found in Apache HttpClient. This vulnerability allows a remote attacker to bypass a critical step in the SCRAM-SHA-256 authentication process. By exploiting this, an attacker can trick the client into accepting authentication without proper mutual verification, potentially compromising...

net-imap vulnerable to denial of service via high iteration count for `SCRAM-*` authentication

Summary When authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. Details A hostile IMAP server can send an arbitrarily large PBKDF2 iteration count in the...

Allocation of Resources Without Limits or Throttling

Overview org.postgresql:postgresql is a Java JDBC 4.2 JRE 8+ driver for PostgreSQL database. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling during the client-side SCRAM-SHA-256 authentication. An attacker can cause excessive CPU consumptio...

CVE-2026-42198

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count...

CVE-2026-42198 pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count...

CVE-2026-42198 pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count...

CVE-2026-42198 pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count...

CVE-2026-42198

CVE-2026-42198 affects the pgjdbc PostgreSQL JDBC driver in versions 42.2.0 through before 42.7.11. The vulnerability is a client-side denial of service during SCRAM-SHA-256 authentication: a malicious server can force SCRAM with an extremely high iteration count, causing the client to spend unbo...

CVE-2026-42198

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count...

PT-2026-35952

Name of the Vulnerable Software and Affected Versions pgjdbc versions 42.2.0 through 42.7.10 Description A client-side denial of service occurs during SCRAM-SHA-256 Salted Challenge Response Authentication Mechanism Secure Hash Algorithm 256 authentication. A malicious server can instruct the...

CVE-2026-42198: Allocation of Resources Without Limits or Throttling

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count...

Linux Distros Unpatched Vulnerability : CVE-2026-40542

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Missing critical step in authentication in Apache HttpClient 5.6 allows an attacker to cause the client to accept SCRAM-SHA-256 authentication without proper...

pgJDBC 安全漏洞

pgJDBC is an open-source PostgreSQL driver developed by pgJDBC. Versions of pgJDBC from 42.2.0 to 42.7.11 contained security vulnerabilities. These vulnerabilities stemmed from a client denial-of-service vulnerability during SCRAM-SHA-256 authentication. A malicious server could instruct the driv...

Improper Authentication

Apache HttpClient is vulnerable to Improper Authentication. The vulnerability is due to a missing verification step in SCRAM-SHA-256 authentication, which allows an attacker to bypass proper mutual authentication checks and be accepted by the client...