CVE-2026-33306

bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt password hashing algorithm. Prior to version 3.1.22, an integer overflow in the Java BCrypt implementation for JRuby can cause zero iterations in the strengthening loop. Impacted applications must be setting the cost to 31 to see this happen. T...

CVE-2026-33306

bcrypt-ruby is a Ruby binding for the OpenBSD bcrypt password hashing algorithm. Prior to version 3.1.22, an integer overflow in the Java BCrypt implementation for JRuby can cause zero iterations in the strengthening loop. Impacted applications must be setting the cost to 31 to see this happen. T...

Integer Overflow

bcrypt-ruby is vulnerable to Integer Overflow. The vulnerability is due to an integer overflow in the Java BCrypt implementation for JRuby, where the key-strengthening round count is computed as a signed 32-bit integer, and when cost=31, signed integer overflow causes the round count to become...

CVE-2026-22737

Use of Java scripting engine enabled e.g. JRuby, Jython template views in Spring MVC and Spring WebFlux applications can result in disclosure of content from files outside the configured locations for script template views. This issue affects Spring Framework: from 7.0.0 through 7.0.5, from 6.2.0...

bcrypt-ruby has an Integer Overflow that Causes Zero Key-Strengthening Iterations at Cost=31 on JRuby

Impact An integer overflow in the Java BCrypt implementation for JRuby can cause zero iterations in the strengthening loop. Impacted applications must be setting the cost to 31 to see this happen. The JRuby implementation of bcrypt-ruby BCrypt.java computes the key-strengthening round count as a...

GHSA-F27W-VCWJ-C954 bcrypt-ruby has an Integer Overflow that Causes Zero Key-Strengthening Iterations at Cost=31 on JRuby

Impact An integer overflow in the Java BCrypt implementation for JRuby can cause zero iterations in the strengthening loop. Impacted applications must be setting the cost to 31 to see this happen. The JRuby implementation of bcrypt-ruby BCrypt.java computes the key-strengthening round count as a...

bcrypt-ruby has an Integer Overflow that Causes Zero Key-Strengthening Iterations at Cost=31 on JRuby

Impact An integer overflow in the Java BCrypt implementation for JRuby can cause zero iterations in the strengthening loop. Impacted applications must be setting the cost to 31 to see this happen. The JRuby implementation of bcrypt-ruby BCrypt.java computes the key-strengthening round count as a...

Astra Linux – Vulnerability in Rubygems, Ruby 3.1

A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby, up to 3.2.1. The URI parser improperly handles invalid URLs that contain specific characters. This leads to an increase in the execution time required to parse strings into URI objects. The fixed versions are 0.12.1, 0.11.1...

CVE-2009-4123

The jruby-openssl gem before 0.6 for JRuby mishandles SSL certificate validation...

PT-2026-26246

Name of the Vulnerable Software and Affected Versions bcrypt-ruby versions prior to 3.1.22 Description The bcrypt-ruby gem, a Ruby binding for the OpenBSD bcrypt password hashing algorithm, contains a flaw in its Java BCrypt implementation for JRuby. Specifically, an integer overflow in the...

EUVD-2021-1954

Malware in sbrugna...

EUVD-2011-4756

Malware in sbrugna...

EUVD-2022-5601

Malicious code in bioql PyPI...

EUVD-2025-13880

Malicious code in bioql PyPI...

EUVD-2022-3805

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2025-46551

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby- OpenSSL version 0.12.1 and prior to version 0.15.4...

CVE-2025-46551

A security issue was discovered in JRuby-OpenSSL gem for JRuby. When verifying SSL certificates, jruby-openssl does not confirm that the hostname presented in the certificate matches the hostname of the system in which it is attempting to connect. A man-in-the-middle can present a valid certifica...

GHSA-72QJ-48G4-5XGX JRuby-OpenSSL has hostname verification disabled by default

Summary When verifying SSL certificates, jruby-openssl is not verifying that the hostname presented in the certificate matches the one we are trying to connect to, meaning a MITM could just present any valid cert for a completely different domain they own, and JRuby wouldn't complain. Details n/a...

Improper Validation of Certificate with Host Mismatch

Overview Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the SSL certificate validation process. An attacker can intercept secure communications by presenting a valid certificate for an unrelated domain that the attacker controls. Note:...

Improper Validation of Certificate with Host Mismatch

Overview org.jruby:jruby is a high performance, stable, fully threaded Java implementation of the Ruby programming language. Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the SSL certificate validation process. An attacker can interce...