CVE Watch9 de nov. de 2026

CVE-2026-118492

In Eclipse Langium versions 3.0.0 and later, the langium-sprotty package does not HTML-escape diagnostic messages before rendering them in t

CVSS

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Sem CVSS

EPSS

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KEV

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Exploit Today

0-100

Publicado: 9 de nov. de 2026 · Última mod.: 9 de nov. de 2026 · CWE-79

EPSS · 30d

Ainda não há histórico EPSS suficiente.

Descrição técnica

In Eclipse Langium versions 3.0.0 and later, the langium-sprotty package does not HTML-escape diagnostic messages before rendering them in the default hover popup provided by `addHoverPopupHandler`. If a Langium grammar allows cross-reference text to contain HTML markup (such as through a STRING terminal), an unresolved cross-reference produces a diagnostic message that includes the literal ref text. When a Sprotty diagram is opened for a malicious source file under these conditions, and a user hovers over the corresponding error marker, attacker-controlled JavaScript can execute in the browser or webview.

Referências oficiais

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