1.12.5 / 2021-09-27
Security
[JRuby] Address CVE-2021-41098 (GHSA-2rr5-8q37-2w7h).
In Nokogiri v1.12.4 and earlier, on JRuby only, the SAX parsers resolve external entities (XXE) by default. This fix turns off entity-resolution-by-default in the JRuby SAX parsers to match the CRuby SAX parsers' behavior.
CRuby users are not affected by this CVE.
Fixed
- [CRuby]
Document#to_xhtml
properly serializes self-closing tags in libxml > 2.9.10. A behavior change introduced in libxml 2.9.11 resulted in emitting start and and tags (e.g., <br></br>
) instead of a self-closing tag (e.g., <br/>
) in previous Nokogiri versions. [#2324]
1.12.4 / 2021-08-29
Notable fix: Namespace inheritance
Namespace behavior when reparenting nodes has historically been poorly specified and the behavior diverged between CRuby and JRuby. As a result, making this behavior consistent in v1.12.0 introduced a breaking change.
This patch release reverts the Builder behavior present in v1.12.0..v1.12.3 but keeps the Document behavior. This release also introduces a Document attribute to allow affected users to easily change this behavior for their legacy code without invasive changes.
Compensating Feature in XML::Document
This release of Nokogiri introduces a new Document
boolean attribute, namespace_inheritance
, which controls whether children should inherit a namespace when they are reparented. Nokogiri::XML:Document
defaults this attribute to false
meaning "do not inherit," thereby making explicit the behavior change introduced in v1.12.0.
CRuby users who desire the pre-v1.12.0 behavior may set document.namespace_inheritance = true
before reparenting nodes.
See https://nokogiri.org/rdoc/Nokogiri/XML/Document.html#namespace_inheritance-instance_method for example usage.
Fix for XML::Builder
However, recognizing that we want Builder
-created children to inherit namespaces, Builder now will set namespace_inheritance=true
on the underlying document for both JRuby and CRuby. This means that, on CRuby, the pre-v1.12.0 behavior is restored.
Users who want to turn this behavior off may pass a keyword argument to the Builder constructor like so:
Nokogiri::XML::Builder.new(namespace_inheritance: false)
See https://nokogiri.org/rdoc/Nokogiri/XML/Builder.html#label-Namespace+inheritance for example usage.
Downstream gem maintainers
Note that any downstream gems may want to specifically omit Nokogiri v1.12.0--v1.12.3 from their dependency specification if they rely on child namespace inheritance:
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