# CVE-2026-57435

## Summary

- **CVE ID:** CVE-2026-57435
- **Severity:** LOW
- **CVSS Score:** 1.7 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U)
- **CWE:** CWE-416, CWE-825
- **Published:** Jun 25, 2026
- **Last Modified:** Jun 25, 2026

## Description

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri’s CRuby native extension could leave a Ruby wrapper pointing to freed memory when replacing the value of an XML attribute. If Ruby code had already accessed an attribute child node, Nokogiri::XML::Attr#value= could free the underlying native child node while the wrapper remained reachable through the document node cache. A later use of the freed child node or a Ruby GC mark could dereference an invalid pointer, causing an invalid read and a possible segfault. This vulnerability is fixed in 1.19.4.

## Affected Products

- sparklemotion — nokogiri (< 1.19.4)

## References

- [CNA](https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-phwj-rprq-35pp)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.46%
- **EPSS Percentile:** 38.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-09._