RUSTSEC-2026-0193 mXSS in ammonia via MathML `annotation-xml` encoding strip

If a certain set of MathML tags are enabled, an attacker can inject arbitrary JavaScript code into the user's browser. The annotation-xml tag has slightly different behavior than the other "integration point" tags in MathML and SVG, but ammonia didn't handle it, so it didn't correctly strip the...

mXSS in ammonia via MathML `annotation-xml` encoding strip

If a certain set of MathML tags are enabled, an attacker can inject arbitrary JavaScript code into the user's browser. The annotation-xml tag has slightly different behavior than the other "integration point" tags in MathML and SVG, but ammonia didn't handle it, so it didn't correctly strip the...

PT-2026-54956

If a certain set of MathML tags are enabled, an attacker can inject arbitrary JavaScript code into the user's browser. The annotation-xml tag has slightly different behavior than the other "integration point" tags in MathML and SVG, but ammonia didn't handle it, so it didn't correctly strip the...

PT-2026-60733

Name of the Vulnerable Software and Affected Versions ammonia versions prior to 3.3.2 ammonia versions prior to 4.0.2 ammonia versions prior to 4.1.3 Description Applications that explicitly allow the math tag, annotation-xml, and at least one raw-text HTML element such as title, textarea, xmp,...