CVE-2026-45755

EUVD-2026-44361
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
symfony
bookworm
5.4.53+dfsg-0+deb12u1
fixed
bookworm (security)
5.4.53+dfsg-0+deb12u1
fixed
bullseye
4.4.19+dfsg-2+deb11u6
fixed
bullseye (security)
4.4.19+dfsg-2+deb11u7
fixed
forky
7.4.14+dfsg-1
fixed
sid
7.4.14+dfsg-1
fixed
trixie
6.4.41+dfsg-0+deb13u1
fixed
trixie (security)
6.4.41+dfsg-0+deb13u1
fixed
Common Weakness Enumeration
References
https://github.com/symfony/symfony/commit/4e0467e4e182cf2e704a3d9e1bc1a6be65d52ab8
https://github.com/symfony/symfony/releases/tag/v7.4.12
https://github.com/symfony/symfony/releases/tag/v8.0.12
https://github.com/symfony/symfony/security/advisories/GHSA-59f3-vp2f-mp9w