Laravel is a widely used web framework; a high-severity (8.9) CRLF email injection can disrupt notifications and enable interception across many apps.
CVE-2026-48019
CRLF injection in Laravel email validation can tamper with outbound mail.
WAF coverage: Network-reachable. Generic WAF signatures may reduce blast radius. No CWE mapping to be precise.
Also consider: patch
Is CVE-2026-48019 being exploited?
Not confirmed. CVE-2026-48019 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.68% probability of exploitation in the next 30 days.
How severe is CVE-2026-48019?
CVE-2026-48019 is rated High with a CVSS score of 8.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-48019?
Yes. A fix has been recorded for CVE-2026-48019. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48019 affect?
CVE-2026-48019 affects Laravel <12.60.0, Laravel <13.10.0, Applications using Symfony Mailer/Mime with user-supplied addresses. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48019?
Upgrade Laravel to >=12.60.0 or >=13.10.0 and validate/sanitize email input.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can inject CRLF into user-supplied addresses to modify headers, add recipients, split or intercept outbound emails (e.g., password resets).
Immediate action required
- affected>= 13.0.0 and < 13.10.0
- affected< 12.60.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.