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...

PT-2026-36987

Name of the Vulnerable Software and Affected Versions net-imap affected versions not specified Description A hostile IMAP server can trigger a computational denial-of-service attack on the client process during authentication using SCRAM-SHA1 or SCRAM-SHA256. By sending an arbitrarily large PBKDF...

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 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: 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...

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...

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 authentication. A malicious server can force the driver to execute SCRAM authentication using an excessively large iteration count,...

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...

Missing Critical Step in Authentication

Overview org.apache.httpcomponents.client5:httpclient5 is a HttpClient component of the Apache HttpComponents project. Affected versions of this package are vulnerable to Missing Critical Step in Authentication in the AuthenticationHandler's handleResponse method. The client may accept...

SUSE CVE-2026-40542

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 mutual authentication verification. Users are recommended to upgrade to version 5.6.1, which fixes this issue...

GHSA-V468-QCJX-R72W Apache HttpClient accepts SCRAM-SHA-256 authentication without proper mutual authentication verification

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 mutual authentication verification. Users are recommended to upgrade to version 5.6.1, which fixes this issue...

CVE-2026-40542

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 mutual authentication verification. Users are recommended to upgrade to version 5.6.1, which fixes this issue...

CVE-2026-40542 Apache HttpClient: SCRAM-SHA-256 mutual authentication bypass may cause the client to accept authentication without proper mutual authentication verification

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 mutual authentication verification. Users are recommended to upgrade to version 5.6.1, which fixes this issue...

CVE-2026-40542

Apache HttpClient 5.6 is affected by a missing step in SCRAM-SHA-256 mutual authentication, allowing a client to accept authentication without proper mutual verification. The issue impacts the 5.6 release and is fixed by upgrading to version 5.6.1. Affected component: Apache HttpClient (Java), v5...

CVE-2026-40542

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 mutual authentication verification. Users are recommended to upgrade to version 5.6.1, which fixes this issue...