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symfony/polyfill-intl-idn vulnerabilities (Packagist)

1 vulnerability.

symfony/polyfill-intl-idn Packagistsymfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalenceCVE-2026-46644Fix available6.9 MediumMay 28, 2026