Vulnerability advisory

CVE-2026-48019

CRLF injection in Laravel's default email rule enables SMTP smuggling and spoofed-mail relay

Published Sep 4, 2026Updated Oct 28, 2026OSV record ↗

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

Affected versions

Repository

Affected commits	Fixed by commit
GIT github.com/laravel/framework ↗
3e33f431a05365d008742ff8001b92641086d5f8 to before e36708519b893d78c2fede3d26ccac23f400368d	`e36708519b893d78c2fede3d26ccac23f400368d`
All commits before b39ddd3fea8c93ccd3ec10c2472e9ea5167494f2	`b39ddd3fea8c93ccd3ec10c2472e9ea5167494f2`
Not specified	`96e9a663db657cf37ef26cd794fda8ff60eaa451`
Not specified	`f336ba79e744257f84ebf0d096b0ebc62e8e1a4d`
Also listed as affected (149) `v12.59.0` `v13.9.0` `v13.8.0` `v13.7.0` `v12.58.0` `v12.57.0` `v13.6.0` `v13.5.0` `v13.4.0` `v13.3.0` `v12.56.0` `v13.2.0` `v13.1.1` `v13.1.0` `v12.55.1` `v13.0.0` `v12.55.0` `v12.54.1` `v12.54.0` `v12.53.0` `v12.52.0` `v12.51.0` `v12.50.0` `v12.49.0` `v12.48.1` `v12.48.0` `v12.47.0` `v12.46.0` `v12.45.2` `v12.45.1` `v12.45.0` `v12.44.0` `v12.43.1` `v12.43.0` `v12.42.0` `v12.41.1` `v12.41.0` `v12.40.2` `v12.40.0` `v12.40.1` `v12.39.0` `v12.38.1` `v12.38.0` `v12.37.0` `v12.36.1` `v12.36.0` `v12.35.1` `v12.35.0` `v12.34.0` `v12.33.0` `v12.32.5` `v12.32.4` `v12.32.3` `v12.32.2` `v12.32.1` `v12.32.0` `v12.31.1` `v12.31.0` `v12.30.1` `v12.30.0` `v12.29.0` `v12.28.1` `v12.28.0` `v12.27.1` `v12.26.4` `v12.26.3` `v12.26.2` `v12.26.1` `v12.26.0` `v12.25.0` `v12.24.0` `v12.23.1` `v12.23.0` `v12.22.1` `v12.22.0` `v12.21.0` `v12.20.0` `v12.19.3` `v12.19.2` `v12.19.1` `v12.19.0` `v12.18.0` `v12.17.0` `v12.16.0` `v12.15.0` `v12.14.1` `v12.14.0` `v12.13.0` `v12.12.0` `v12.11.1` `v12.11.0` `v12.10.2` `v12.10.1` `v12.10.0` `v12.9.2` `v12.9.1` `v12.9.0` `v12.8.1` `v12.8.0` `v12.7.2` `v12.7.1` `v12.7.0` `v12.6.0` `v12.5.0` `v12.4.1` `v12.4.0` `v12.3.0` `v12.2.0` `v12.1.1` `v12.1.0` `v12.0.1` `v12.0.0` `v9.0.0-beta.1` `v8.17.2` `v8.17.1` `v8.17.0` `v8.16.0` `v8.15.0` `v8.14.0` `v8.13.0` `v8.12.3` `v8.12.2` `v8.12.1` `v8.12.0` `v8.11.2` `v8.11.0` `v8.11.1` `v8.9.0` `v8.8.0` `v8.7.1` `v8.7.0` `v8.6.0` `v8.5.0` `v8.4.0` `v8.3.0` `v8.2.0` `v8.1.0` `v8.0.4` `v8.0.3` `v8.0.2` `v8.0.1` `v8.0.0` `v5.5.1` `v5.5.0` `v4.1.0` `v4.0.0` `v4.0.0-BETA4` `v4.0.0-BETA3` `v4.0.0-BETA2`

Description

Laravel is a web application framework. Prior to versions 12.60.0 and 13.10.0, a CRLF injection vulnerability in Laravel's email validation, in combination with how Symfony Mailer and Symfony Mime handle certain character sequences, may allow an unauthenticated attacker to interfere with outbound email processing in applications that send mail to user-supplied addresses. This issue has been patched in versions 12.60.0 and 13.10.0.

CVE-2026-48019

Affected versions

Repository

Description

References