GHSA-P67V-3W7G-WJG7 Nokogiri: Possible Use-After-Free when directly using `NokogirI::XML::XPathContext` beyond document lifetime

Summary Nokogiri::XML::XPathContext did not keep its source document alive for garbage collection. If an XPathContext outlived its document and the document was collected, evaluating an XPath expression could read invalid memory and potentially segfault. This is only reachable when application co...

Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

Summary Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage collection or finalization, leading to an invalid memory read or potentially a segfault. Nokogiri...

GHSA-5PRR-V3J2-97MH Nokogiri: Possible Out-of-Bounds Read in `Nokogiri::XML::NodeSet#[]`

Summary Nokogiri::XML::NodeSet and its alias slice checked the requested index against the node set's bounds using a 32-bit-truncated copy of the index. A large negative index could pass the check and then be used at full width, reading outside the node set's storage. On CRuby this is an...

XML External Entity (XXE) Injection

Overview nokogiri is a gem for parsing HTML, XML, SAX, and Reader. Affected versions of this package are vulnerable to XML External Entity XXE Injection in the Nokogiri::XML::Schema when the NONET parse option is not correctly enforced on JRuby. An attacker can access external network resources b...

PT-2026-51084

Name of the Vulnerable Software and Affected Versions oj gem affected versions not specified Description A heap use-after-free occurs in Oj::Parserparse when a SAJ/SAJ2 callback mutates the input JSON string during the parsing process. The C engine maintains a raw pointer to the Ruby string's...

PT-2026-51019

Name of the Vulnerable Software and Affected Versions YARD versions prior to 0.9.44 Description YARD is a documentation generation tool for the Ruby programming language. The static cache lookup reads a request path before the router's path cleanup process occurs. When a server is configured with...

PT-2026-51085

Name of the Vulnerable Software and Affected Versions Oj versions prior to 3.17.2 Description A heap use-after-free occurs when disabling symbol keys on a reused Oj::Parser instance. When the symbol keys setting is changed from true to false, the opt symbol keys set function frees the internal ke...

RHEL 9 : ruby:3.3 (RHSA-2026:26655)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:26655 advisory. Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management task...

Concurrent Ruby - `AtomicReference#update` livelocks when the stored value is `Float::NAN`

Summary Concurrent::AtomicReferenceupdate can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between: - AtomicReferenceupdate, which retries until compareandsetoldvalue, newvalue succeeds. - Numeric compareandset, which checks old ==...

PT-2026-51090

Name of the Vulnerable Software and Affected Versions concurrent-ruby versions prior to 1.3.7 Description The Concurrent::AtomicReferenceupdate function can enter a permanent busy retry loop when the current value is Float::NAN. This occurs due to the interaction between AtomicReferenceupdate,...

Oj - Use-After-Free in Oj::Parser SAJ Callback via Input Mutation

Summary Oj::Parserparse is vulnerable to a heap use-after-free when a SAJ/SAJ2 callback mutates the input JSON string during parsing. The C engine holds a raw const byte pointer into the Ruby string's internal buffer. If a callback e.g. hashstart resizes the string — for example by calling...

Oj - intern.c form_attr (uninitialized stack read)

Summary Oj.load in :object mode reads uninitialized stack memory and, for long keys, reads out of bounds when parsing a JSON object whose key is 254 bytes or longer. The interned bytes can surface to the caller, disclosing process stack memory. Impact Information disclosure of process stack memor...

PT-2026-51091

Name of the Vulnerable Software and Affected Versions concurrent-ruby versions prior to 1.3.7 Description Concurrent::ReentrantReadWriteLock can incorrectly grant a write lock after a single thread acquires the read lock 32,768 times. The lock manages a thread's local read and write hold counts...

PT-2026-51083

Name of the Vulnerable Software and Affected Versions Oj versions prior to 3.17.2 Description Oj::Doc iterators each value, each child, each leaf are subject to a heap use-after-free. This occurs when a Ruby block yielded during iteration calls doc.close or d.close, causing the document's heap...

Security Bulletin: Open Source Sprockets Sprockets Vulnerability (CVE-2014-7819)

Question Security Bulletin: Open Source Sprockets Sprockets Vulnerability CVE-2014-7819 "Business Unit":"code":"BU059","label":"IBM Software w/o TPS","Product":"code":"SS8NDZ","label":"IBM Aspera","Component":"","Platform":"code":"PF025","label":"Platform Independent","Version":"All...

RHSA-2026:26655 Red Hat Security Advisory: ruby:3.3 security update

Bulletin has no description...

Malicious code in final-poc-usa (RubyGems)

--- -= Per source details. Do not edit below this line.=- Source: ossf-package-analysis 6cc39e355e69ec11b0532da1e2b2a418601a4c5594b100ba6f054f0e52be44be The OpenSSF Package Analysis project identified 'final-poc-usa' @ 0.99800.0 rubygems as malicious. It is considered malicious because: - The...

Malicious code in final-shoaib (RubyGems)

--- -= Per source details. Do not edit below this line.=- Source: ossf-package-analysis f67c342dc8bb7b3c1a396b89796f09865373db04cd9b08034e6087bf47b324ef The OpenSSF Package Analysis project identified 'final-shoaib' @ 1.0.0 rubygems as malicious. It is considered malicious because: - The package...

Ruby net-imap < 0.5.15 / 0.6.x < 0.6.4.1 Multiple Vulnerabilities

The version of the net-imap Ruby library installed on the remote host is prior to 0.5.15, or 0.6.x prior to 0.6.4.1. It is, therefore, affected by multiple vulnerabilities. - Several Net::IMAP commands accept a raw data argument that is sent verbatim after validation to prevent command injection...

Vim < 9.2.0496 Code Injection (GHSA-4473-94jm-w5x9)

The version of Vim installed on the remote host is prior to 9.2.0496. It is, therefore, affected by a vulnerability as referenced in the GHSA-4473-94jm-w5x9 advisory. - A code injection vulnerability exists in s:stepmatch in the cucumber filetype plugin runtime/ftplugin/cucumber.vim on Vim builds...