CVE-2024-50347Network attack vector

Unauthorized API operations via skipped signature verification

Published Oct 31, 2024 · Updated Oct 31, 2024

Missing signature verification in Laravel Reverb before 1.4.0 allows remote attackers to invoke Pusher-compatible API operations. Controller::verify selected the application and channels but failed to call verifySignature, so requests reached handlers without an HMAC comparison. Attackers must know the nonpublic application ID and can broadcast crafted events, read connection or channel statistics, or terminate user connections.

CVSS severity8.7
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing signature verification in Laravel Reverb before 1.4.0 allows remote attackers to invoke Pusher-compatible API operations. Controller::verify selected the application and channels but failed to call verifySignature, so requests reached handlers without an HMAC comparison. Attackers must know the nonpublic application ID and can broadcast crafted events, read connection or channel statistics, or terminate user connections.

The record

CVE
CVE-2024-50347
Published
Oct 31, 2024
Updated
Oct 31, 2024
Vendor
Laravel
Product
Laravel Reverb
Classifications
CWE-347, CWE-345, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Laravel · Laravel Reverbversion=< 1.4.0

Published CVSS scores

8.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
CWE-345Insufficient Verification of Data Authenticity
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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