Incorrect Regular Expression Affecting org.webjars.npm:fast-xml-parser package, versions [,5.8.0)
Threat Intelligence
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Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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Test your applications- Snyk IDSNYK-JAVA-ORGWEBJARSNPM-15324290
- published20 Feb 2026
- disclosed20 Feb 2026
- creditochko
Introduced: 20 Feb 2026
CVE-2026-25896 (opens in a new tab)How to fix?
Upgrade org.webjars.npm:fast-xml-parser to version 5.8.0 or higher.
Overview
org.webjars.npm:fast-xml-parser is a Validate XML, Parse XML, Build XML without C/C++ based libraries
Affected versions of this package are vulnerable to Incorrect Regular Expression in the entity parsing RegEx in DOCTYPE declarations. An attacker can inject arbitrary values that override built-in XML entities by crafting entity names containing ., which is interpreted as a regex wildcard, allowing malicious content to be substituted in place of standard entities when the XML is parsed and subsequently rendered or used in sensitive contexts.