CVE-2026-45754
Medium
Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, the Mailjet mailer bridge and LOX24 notifier bridge webhook parsers received configured webhook secrets but did not verify them, allowing unauthenticated POST requests to inject forged Mailjet and LOX24 event payloads. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Sensiolabs Symfony
PublishedJul 14, 2026
First seenJul 14, 2026
How to fix
Update
- sensiolabs symfony6.4.40, 7.4.12, 8.0.12 or later
- symfony/lox24-notifier7.4.12, 8.0.12 or later
- symfony/symfony6.4.40, 7.4.12, 8.0.12 or later
- symfony/mailjet-mailer6.4.40, 7.4.12, 8.0.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sensiolabs symfony | 6.4.0 ≤ v < 6.4.40, 7.0.0 ≤ v < 7.4.12, 8.0.0 ≤ v < 8.0.12 | 6.4.40, 7.4.12, 8.0.12 |
| symfony/lox24-notifierPackagist | 7.1.0 ≤ v < 7.4.12, 8.0.0 ≤ v < 8.0.12 | 7.4.12, 8.0.12 |
| symfony/symfonyPackagist | 6.4.0 ≤ v < 6.4.40, 7.0.0 ≤ v < 7.4.12, 8.0.0 ≤ v < 8.0.12 | 6.4.40, 7.4.12, 8.0.12 |
| symfony/mailjet-mailerPackagist | 6.4.0 ≤ v < 6.4.40, 7.0.0 ≤ v < 7.4.12, 8.0.0 ≤ v < 8.0.12 | 6.4.40, 7.4.12, 8.0.12 |
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