HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-57235 — Nokogiri is an open source XML and HTML library for the Ruby programming languag...

·Source: NIST NVD

Updated:

Executive Summary

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, 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 out-of-bounds

Analysis

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, 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 out-of-bounds read that typically crashes the process; on JRuby it is not memory-unsafe but returns an incorrect node. This vulnerability is fixed in 1.19.4. CVSS Score: 8.2. Published: 2026-06-25T15:16:40.493.

Indicators of Compromise (1)

CVE (1)
CVE-2026-57235
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Jun 25, 2026. Verified by: NIST.

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