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CVE-2026-46644 symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalence

🗓️ 14 Jul 2026 20:48:31Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

Symfony polyfill intl idn pre-1.38.1 accepts punycode labels decoding ASCII, enabling bypass server side request forgery.

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17 Jul 2026 03:41Current
6.1Medium risk
Vulners AI Score6.1
CVSS 46.9
EPSS0.00394
4