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symfony/mailomat-mailer vulnerabilities

Vulnerabilities published for symfony/mailomat-mailer in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerability: 1

  1. CVE-2026-48747

    Medium · CVSS 6.3EPSS 0.25%Fix available

    Symfony: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade

    Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.13 and 8.0.13, MailomatRequestParser::validateSignature() parsed X-MOM-Webhook-Signature as algo=signature and passed the request-selected algorithm to hash_hmac(), allowing a signature algorithm downgrade instead of enforcing Mailomat's documented SHA-256 webhook signature. This issue is fixed in versions 7.4.13 and 8.0.13.

    symfony/mailomat-mailer symfony/mailomat-mailerPHP
    • Update to 7.4.13
    • Update to 8.0.13
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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