En bref
- CVE-2026-12866 est une vulnérabilité CRITIQUE (CVSS 9.8) touchant org.webjars.npm:expr-eval, expr-eval.
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.87%, plus élevée que 58.7% des vulnérabilités.
- Aucune version corrigée n'est encore connue : suivez l'avis de l'éditeur dans les références.
Description
All versions of the package expr-eval are vulnerable to Code Execution via the toJSFunction() API. An attacker can execute arbitrary JavaScript by supplying crafted expressions that are compiled into native code using new Function(). Because user-controlled expressions are transformed directly into executable JavaScript, attackers can escape the intended expression sandbox and run arbitrary code within the application's context.
NVD description
All versions of the package expr-eval are vulnerable to Code Execution via the toJSFunction() API. An attacker can execute arbitrary JavaScript by supplying crafted expressions that are compiled into native code using new Function(). Because user-controlled expressions are transformed directly into executable JavaScript, attackers can escape the intended expression sandbox and run arbitrary code within the application's context.
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