Improper Neutralization of Data within XPath Expressions ('XPath Injection') Affecting simplesamlphp/saml2-legacy package, versions <4.20.3
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Test your applications- Snyk IDSNYK-PHP-SIMPLESAMLPHPSAML2LEGACY-17798853
- published2 Jul 2026
- disclosed2 Jul 2026
- creditUnknown
Introduced: 2 Jul 2026
NewCVE-2026-49289 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade simplesamlphp/saml2-legacy to version 4.20.3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Neutralization of Data within XPath Expressions ('XPath Injection') through the XPath Transform process. An attacker can cause the application to become unresponsive or crash by sending specially crafted messages that exploit this process.