CVE-2026-57435
Nokogiri: Possible Use-After-Free when setting an attribute value via `Nokogiri::XML::Attr#value=` or `#content=`
- State
- Published
- Severity
- 1.7 Low
- Published
- Jun 25, 2026
- Updated
- Jun 25, 2026
- Reserved
- Jun 24, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 1.7 Low | 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 | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
nokogirisparklemotion |
|
References
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