Security vulnerabilities and automated fixes for cve 2026 25896 issues
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CVE-2026-25896 is a critical Cross-Site Scripting vulnerability in fast-xml-parser stemming from improper DOCTYPE entity handling, which could allow attackers to inject malicious scripts through crafted XML payloads. The fix upgrades the vulnerable dependency from version 4.4.1 to patched versions 5.3.5 and 4.5.4, eliminating the unsafe parsing behavior while preserving all legitimate XML processing functionality.