CVE-2026-63430: ammonia < 3.3.2, >= 4.0.0, < 4.0.2, >= 4.1.0, < 4.1.3

Affected technology

ammonia · < 3.3.2, >= 4.0.0, < 4.0.2, >= 4.1.0, < 4.1.3
rust-ammonia

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An attacker can use that namespace transition and an allowed raw-text HTML element to execute JavaScript when a user renders the sanitized output. Vendor/CNA’s CVSS 4.0 assessment (base score 6.3/10) rates confidentiality, integrity and availability impact as none.