symfony: Symfony is a PHP framework for web and console applications and a set of reusable PHP components
CVE-2026-45755 is fixed in symfony on 1 platform by DEBIAN-CVE-2026-45755 (version 7.4.12+dfsg-1), released May 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.12 and 8.0.12, MailtrapRequestParser::doParse() received the configured webhook secret but ignored the X-Mt-Signature HMAC header, allowing unauthenticated POST requests to inject forged Mailtrap delivery, bounce, open, click, or spam events. This issue is fixed in versions 7.4.12 and 8.0.12.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| symfony · Debian 14 | 7.4.12+dfsg-1 | DEBIAN-CVE-2026-45755 | May 27, 2026 |
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