CVE-2026-45755

MediumCVSS 5.3/10Last modified Jul 15, 2026

Description

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-306 CWE-347

Affected software

No affected versions have been published.

Timeline

Published: Jul 14, 2026
Last modified: Jul 15, 2026
NVD status: Analyzed

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