Sourced from fast-xml-parser's releases.

Entity security and performance

• Improve security and performance of entity processing
  • new options maxEntitySize, maxExpansionDepth, maxTotalExpansions, maxExpandedLength, allowedTags,tagFilter
  • fast return when no edtity is present
  • improvement replacement logic to reduce number of calls

Full Changelog: NaturalIntelligence/fast-xml-parser@v5.3.5...v5.3.6

v5.3.5

What's Changed

• Add missing exports to fxp commonjs types by @​jeremymeng in NaturalIntelligence/fast-xml-parser#782
• fix: Escape regex char in entity name
• update strnum to 2.1.2

New Contributors

• @​jeremymeng made their first contribution in NaturalIntelligence/fast-xml-parser#782

Full Changelog: NaturalIntelligence/fast-xml-parser@v5.3.4...v5.3.5

Sourced from fast-xml-parser's changelog.

Note: If you find missing information about particular minor version, that version must have been changed without any functional change in this library.

Note: Due to some last quick changes on v4, detail of v4.5.3 & v4.5.4 are not updated here. v4.5.4x is the last tag of v4 in github repository. I'm extremely sorry for the confusion

5.5.9 / 2026-03-23

• combine typing files

4.5.5 / 2026-03-22

apply fixes from v5 (legacy maintenance branch v4-maintenance)

• support maxEntityCount
• support onDangerousProperty
• support maxNestedTags
• handle prototype pollution
• fix incorrect entity name replacement
• fix incorrect condition for entity expansion

5.5.8 / 2026-03-20

• pass read only matcher in callback

5.5.7 / 2026-03-19

• fix: entity expansion limits
• update strnum package to 2.2.0

5.5.6 / 2026-03-16

• update builder dependency
• fix incorrect regex to replace . in entity name
• fix check for entitiy expansion for lastEntities and html entities too

5.5.5 / 2026-03-13

• sanitize dangerous tag or attribute name
• error on critical property name
• support onDangerousProperty option

5.5.4 / 2026-03-13

• declare Matcher & Expression as unknown so user is not forced to install path-expression-matcher

5.5.3 / 2026-03-11

• upgrade builder

5.5.2 / 2026-03-11

• update dependency to fix typings

5.5.1 / 2026-03-10

• fix dependency

... (truncated)

• ecb2ca1 update release info
• 910dae5 fix entities performance & security issues
• fe9a852 update strnum and release detail
• 943ef0e fix: Escape regex char in entity name
• ddcd0ac Escape regex char in entity name
• 341b582 Add missing exports to fxp commonjs types (#782)
• See full diff in compare view