symfony/polyfill-intl-idn vulnerabilities

Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions

Registry
Composer
Latest
1.43.0
License
MIT
Source
github.com/symfony/polyfill-intl-idn (opens the source repository in a new tab)

1 known advisory

The latest version, 1.43.0, is not affected by any of them. Projects on older versions may be.

Update to the latest version:composer require symfony/polyfill-intl-idn:^1.43.0

Security advisories for symfony/polyfill-intl-idn

  • LowGHSA-2xf4-cg6j-vhgq28 May 2026

    symfony/polyfill-intl-idn: xn-- labels with ASCII-only Punycode payloads are treated as equivalent to their decoded form

    Affected
    >=1.17.1 <1.38.1
    Fixed in
    1.38.1

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