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Fencer Vulns
high 8.9

CVE-2026-48019 json

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

published 2026-06-17 4 mo ago modified 2026-09-10 59 d ago also GHSA-5vg9-5847-vvmq , EUVD-2026-71787

cvss
8.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

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.

Patch / fix

  • packagist laravel/framework 12.60.0, 13.10.0
  • php-laravel-framework Debian 14 13.31.0+dfsg-1

debian advisories DEBIAN-CVE-2026-48019

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 mo ago

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
GitHub 3.1 8.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

Affected packages

ecosystem package affected fixed in
packagist laravel/framework
>=13.0.0, <13.10.0
<12.60.0
13.10.0
12.60.0

Affected products

  • laravel framework

Classification

Weakness
  • CWE-93 Improper Neutralization of CRLF Sequences

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.