symfony/mime vulnerabilities

Allows manipulating MIME messages

Registry
Composer
Latest
8.1.7
License
MIT

3 known advisories

The latest version, 8.1.7, is not affected by any of them. Projects on older versions may be.

Update to the latest version:composer require symfony/mime:^8.1.7

Security advisories for symfony/mime

  • MediumGHSA-vqc8-7275-q27227 May 2026

    Symfony has Email Header Injection via Non-Token Characters in Mime Parameter Names

    Affected
    <5.4.52 · >=6.0.0 <6.4.40 · >=7.0.0 <7.4.12 · >=8.0.0 <8.0.12
    Fixed in
    5.4.52, 6.4.40, 7.4.12, 8.0.12
  • HighGHSA-qpmx-3rfj-7rhv27 May 2026

    Symfony has Email Header / SMTP Command Injection via CRLF in Symfony\Component\Mime\Address

    Affected
    <5.4.52 · >=6.0.0 <6.4.40 · >=7.0.0 <7.4.12 · >=8.0.0 <8.0.12
    Fixed in
    5.4.52, 6.4.40, 7.4.12, 8.0.12
  • HighGHSA-xhh6-956q-4q692 Dec 2019

    Argument injection in a MimeTypeGuesser in Symfony

    Affected
    >=4.3.0 <4.3.8
    Fixed in
    4.3.8

Which of your client projects still run an old symfony/mime?

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Other Composer packages

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