CVE-2026-48019Disclosure

MEDIUM

Exploitation observed; activity peaked at 3 mentions and remains active

Immediate actions

Patch affected systems immediately
Assume compromise if assets are exposed

Recommended action window: Immediate (within 24h)

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4.0/ 10 priority

Priority

MEDIUM

Exploitation

ACTIVE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

Active exploitation appears in 1 classified signals
Patch or workaround signal is available
10 mentions across 6 observed days
Momentum state: stable

What's happening

Active exploitation reported across 1 signal
Patch or workaround mentioned in 4 signals
Technical details provided in 9 signals
Disclosure: 4 classified signals
Peaked 5d ago at 3 mentions (2026-06-03); latest day: 1
10 total mentions across 6 days

Deep dive

Activity timeline10 mentions / 6d

Signal classification4 categories

Disclosure

440.0%

Patch

440.0%

Active Exploitation

110.0%

General

110.0%

Referenced assets11 URLs

By indicator

Classification over time

Date	Total	Labels

2026-06-03	3	Disclosure2Patch1
2026-06-04	3	Active Exploitation1Patch2
2026-06-08	1	Disclosure1
2026-06-10	1	Disclosure1
2026-06-18	1	General1
2026-09-08	1	Patch1

Full discourse10 posts

Gray Hats@the_yellow_fall136d
Patch
A severe Laravel CRLF injection vulnerability exposes web apps to mail relay abuse. Apply the latest CVE-2026-48019 patch to protect your infrastructure. #Laravel #CRLFInjection #CVE202648019 #CybersecurityNews #WebDevSecurity https://securityonline.info/laravel-crlf-injection-vulnerability-patch/ https://t.co/p0YtVXtdTY
Post summary
The tweet focuses on a critical Laravel CRLF injection flaw and urges users to apply the available patch.
030111543
12.5K followersView on X
OmarXtream@omarxtream131d
Disclosure
I’m proud to share CVE-2026-48019 (I call it LaraFork), a CRLF injection vulnerability in Laravel’s default email validation flow: https://github.com/laravel/framework/security/advisories/GHSA-5vg9-5847-vvmq https://www.tenable.com/cve/CVE-2026-48019
Post summary
The user announces the CRLF injection vulnerability CVE-2026-48019 in Laravel’s email validation, referencing the official GitHub advisory and Tenable, but does not provide proof of exploitation or patch details.
10041790
5.8K followersView on X
Cyber Edition@CyberEdition135d
Patch
📧Laravel patched a high-severity CRLF injection flaw (CVE-2026-48019) that could let attackers manipulate outbound emails, add unauthorized recipients, and expose sensitive data. Developers should update to the latest patched versions ASAP. https://thecyberedition.com/laravel-crlf-injection-vulnerability/ #Laravel
Post summary
Laravel has released a patch for CVE‑2026‑48019, a high‑severity CRLF injection vulnerability that could manipulate outbound emails; developers are urged to update immediately to mitigate the risk.
0002191
740 followersView on X
iototsecnews@iototsecnews129d
Disclosure
Laravel の脆弱性 CVE-2026-48019 が FIX：CRLF インジェクションと機密性／完全性への影響 https://iototsecnews.jp/2026/06/03/laravel-crlf-injection-flaw-could-disrupt-outbound-email-handling/ 今回の脆弱性である CVE-2026-48019 は、Laravel がメールアドレスを処理する際に改行コードである CRLF (Carriage Return Line Feed ) シーケンスを十分にサニタイズせず、そのまま基盤のコンポーネントへ渡してしまうことに起因します。これにより、外部からの入力でメールヘッダーを自由に操作できてしまうため、意図しない宛先への送信や情報漏洩のリスクが生じます。開発の現場では、ライブラリやフレームワークの機能を過信せず、ユーザーからの入力値には常に注意を払うことが大切です。ご利用のチームは、ご注意ください。 #CVE202648019 #Laravel #Vulnerability
Post summary
CVE‑2026‑48019 is a CRLF injection flaw in Laravel’s email handling that can lead to header manipulation, unintended recipients, and data leakage. The post announces the discovery but does not provide a PoC, exploit, or patch details.
01000135
494 followersView on X
The Daily Tech Feed@dailytechonx135d
Patch
Critical #Laravel CRLF Injection Vulnerability (CVE-2026-48019) allows attackers to manipulate outbound emails. Upgrade to versions 13.10.0 or 12.60.0 immediately! Link: https://thedailytechfeed.com/critical-laravel-vulnerability-allows-email-manipulation-urgent-update-required/ #Laravel #CRLF #CVE #Vulnerability #Security #Cybersecurity #Websecurity #Email #Injection #Exploit #Patch #Update #Framework #PHP #Attackers #Mitigation #AppSec #Infosec #Risk #Alert
Post summary
The post alerts users of a critical CRLF injection vulnerability in Laravel that allows email manipulation and urges an immediate patch by upgrading to specified versions.
0001068
354 followersView on X
Israel@f1tym1136d
Disclosure
Laravel CRLF Injection Vulnerability Enables an Attacker to Interfere with Outbound Email Processing https://ift.tt/fRuKIom A high-severity CRLF injection vulnerability in the Laravel framework, tracked as CVE-2026-48019, could allow attackers to interfere with outbound email…
Post summary
This text announces the discovery of a high‑severity CRLF injection flaw (CVE‑2026‑48019) in Laravel, providing basic technical details but offering no PoC, exploit code, patch information, or reports of active exploitation.
0100063
987 followersView on X
Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters39d
Patch
CVE-2026-48019: CRLF injection in Laravel (<12.60.0, <13.10.0) may let unauthenticated attackers tamper with outbound emails via user-supplied addresses. CVSS 8.9. No patch confirmed—upgrade to 12.60.0 or 13.10.0 immediately. Details: https://www.valtersit.com/cve/CVE-2026-48019/ #valtersit #CVE #CVEAlert #infosec #SysAdmin #cybersecurity #Linux #devsecops #devops #developer #sysadmin #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #ethicalhacking #cybersecurityawareness #cybersecurity #cybersecuritynews #cybersecuritytips #python #hacker #linux #kali #ubuntu #debian #ukraine #spain #ireland #unitedkingdom #canada #finland #estonia #lithuania #ireland #hungary #denmark #norway #malta #mexico #switczerland #china #france #germany #docker #kali
Post summary
The CVE‑2026‑48019 vulnerability in Laravel allows unauthenticated CRLF injection to tamper outbound emails (CVSS 8.9); users are advised to upgrade to versions 12.60.0 or 13.10.0 immediately.
0000040
1.0K followersView on X
CERT-PY@CERTpy121d
General
⚠️ Vulnerabilidad en productos Laravel ❗ CVE-2026-48019 ➡️ Más info: https://www.cert.gov.py/vulnerabilidad-en-productos-laravel/ https://t.co/WwZhPFOSTi
Post summary
The tweet announces a CVE-2026‑48019 affecting Laravel products and provides a link for additional details, but it offers no technical, exploit, or mitigation information.
0000097
6.7K followersView on X
ThreadLinqs@threadlinqs135d
Active Exploitation
THREAT INTEL: Laravel CRLF Injection (CVE-2026-48019) - unauth email header injection + mail-relay abuse. CVSS 8.9, 9 detections. https://intel.threadlinqs.com/threat/TL-2026-0677 #ThreatIntel https://t.co/MmQQ35v5aL
Post summary
The tweet indicates that CVE-2026-48019 is a Laravel CRLF injection allowing unauthenticated email header injection and mail‑relay abuse, with nine reported detections and a CVSS score of 8.9.
0000065
54 followersView on X
UNDERCODE NEWS@UndercodeNews136d
Disclosure
🚨 Hidden Mail Manipulation Crisis: Laravel CRLF Injection Flaw (#CVE-2026-48019) Opens Door to Email Hijacking and Header Abuse + Video -Fact Checker: ✅: 2 ❌: 1 || 2/3 → Score: 66% ⚖️ -Prediction: 🟢 1 Positive | 🔴 0 Negative http://undercodenews.com/hidden-mail-manipulation-crisis-laravel-crlf-injection-flaw-cve-2026-48019-opens-door-to-email-hijacking-and-header-abuse-video/
Post summary
An article reports that CVE‑2026‑48019 is a Laravel CRLF injection flaw enabling email hijacking and header abuse, but offers no PoC, exploit tool, or patch details.
0000058
881 followersView on X

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What researchers are saying

CVE-2026-48019

Cyber Edition[verified]@CyberEditionPatch

Laravel has released a patch for CVE‑2026‑48019, a high‑severity CRLF injection vulnerability that could manipulate outbound emails; developers are urged to update immediately to mitigate the risk.

The Daily Tech Feed[verified]@dailytechonxPatch

The post alerts users of a critical CRLF injection vulnerability in Laravel that allows email manipulation and urges an immediate patch by upgrading to specified versions.

Israel[verified]@f1tym1Disclosure

This text announces the discovery of a high‑severity CRLF injection flaw (CVE‑2026‑48019) in Laravel, providing basic technical details but offering no PoC, exploit code, patch information, or reports of active exploitation.

Hugo | DevOps | Cybersecurity 🇱🇻[verified]@HugoValtersPatch

The CVE‑2026‑48019 vulnerability in Laravel allows unauthenticated CRLF injection to tamper outbound emails (CVSS 8.9); users are advised to upgrade to versions 12.60.0 or 13.10.0 immediately.

ThreadLinqs[verified]@threadlinqsActive Exploitation

The tweet indicates that CVE-2026-48019 is a Laravel CRLF injection allowing unauthenticated email header injection and mail‑relay abuse, with nine reported detections and a CVSS score of 8.9.

UNDERCODE NEWS[verified]@UndercodeNewsDisclosure

An article reports that CVE‑2026‑48019 is a Laravel CRLF injection flaw enabling email hijacking and header abuse, but offers no PoC, exploit tool, or patch details.

Gray Hats@the_yellow_fallPatch

The tweet focuses on a critical Laravel CRLF injection flaw and urges users to apply the available patch.

OmarXtream@omarxtreamDisclosure

The user announces the CRLF injection vulnerability CVE-2026-48019 in Laravel’s email validation, referencing the official GitHub advisory and Tenable, but does not provide proof of exploitation or patch details.