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High

Laravel Framework: CRLF injection in default email rule

  • Disclosed: 17.06.2026
  • Updated: 11.10.2026 10:22

Summary

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.

Description

Laravel applications that send email to addresses provided by users — for example during authentication flows or contact forms — may be vulnerable to manipulation of outbound mail content if the address is not adequately sanitized before it reaches the mail transport layer. An attacker who can supply an email address to such a flow may, under certain conditions, be able to influence the content of emails sent by the application, cause those emails to be delivered to unintended recipients, or cause the application's mail server to send unintended messages.

Impact

Affected applications may be exposed to unauthorized access and mail relay abuse. The severity depends on what the application sends by email and how its mail infrastructure is configured.

Remediation

Upgrade to version 12.60.0 or later, or 13.10.0 or later.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package laravel/framework >= 13.0.0, < 13.10.0, < 12.60.0 13.10.0, 12.60.0

References

CVSS score 8.9/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
Weakness (CWE)
CWE-93
Platform
Composer
Package
laravel/framework
Disclosed
17.06.2026
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-5vg9-5847-vvmq - CC BY 4.0

Vulnerability history: laravel/framework

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (26) in the archive
Total entries
26
First → latest
01.2021 09.2026
Without a fix
0
Exploited in attacks
1

Severity breakdown

  • Critical 2
  • High 11
  • Medium 12
  • Low 1

Disclosures per year

Severity:
  1. Laravel Framework: CRLF injection in default email rule this entry
    High · 8.9 CVE-2026-48019 >= 13.0.0, < 13.10.0, < 12.60.0 13.10.0, 12.60.0
  2. Laravel environment manipulation via query string
    High · 0.0 CVE-2024-52301 < 6.20.45, >= 7.0.0, < 7.30.7, >= 8.0.0, < 8.83.28, >= 9.0.0, < 9.52.17, >= 10.0.0, < 10.48.23, >= 11.0.0, < 11.31.0 6.20.45, 7.30.7, 8.83.28, 9.52.17, 10.48.23, 11.31.0
  3. laravel framework SQL Injection via limit and offset functions
    High ghsa-wq8p-mqvg-2p5h >= 6.0.0, < 6.20.26, >= 7.0.0, < 7.30.5, >= 8.0.0, < 8.40.0 6.20.26, 7.30.5, 8.40.0
  4. laravel framework Unexpected database bindings via requests
    High ghsa-jwvj-pwww-3mj5 >= 6.0.0, < 6.20.14, >= 7.0.0, < 7.30.4, >= 8.0.0, < 8.24.0 6.20.14, 7.30.4, 8.24.0
  5. Laravel RCE vulnerability in "cookie" session driver
    Critical · 9.9 ghsa-qm5c-m76r-2hfr >= 4.1.0, < 6.18.31, >= 7.0.0, < 7.22.4 6.18.31, 7.22.4
  6. Laravel Cookie serialization vulnerability
    High ghsa-6jvx-8ch9-j2jr >= 5.5.0, < 5.6.30 5.6.30
  7. Laravel Framework Deserialization Vulnerability
    Critical · 9.8 CVE-2019-9081 >= 5.7.0, < 6.20.44 6.20.44
  8. Laravel Framework RCE Vulnerability
    High · 8.1 Exploited in attacks CVE-2018-15133 <= 5.5.40, >= 5.6.0, < 5.6.30 5.6.30
  9. OS Command Injection in Laravel Framework
    High · 8.8 CVE-2020-19316 < 5.8.17 5.8.17
  10. Improper Input Validation in Laravel
    High · 7.5 CVE-2020-24941 < 6.18.35, >= 7.0.0, < 7.24.0 6.18.35, 7.24.0
  11. SQL Server LIMIT / OFFSET SQL Injection in laravel/framework and illuminate/database
    High ghsa-4mg9-vhxq-vm7j >= 8.0.0, < 8.40.0, < 6.20.26 8.40.0, 6.20.26
  12. Unexpected database bindings
    High · 7.2 ghsa-x7p5-p2c9-phvg < 6.20.14, >= 7.0.0, < 7.30.4, >= 8.0.0, < 8.24.0 6.20.14, 7.30.4, 8.24.0
  13. Query Binding Exploitation
    High · 7.2 CVE-2021-21263 >= 8.0.0, < 8.22.1, >= 6.0.0, < 6.20.11, >= 7.0.0, < 7.30.2 8.22.1, 6.20.11, 7.30.2

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