🛡️ GHSA-fmg6-246m-9g2v — login

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-331 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Auth0 laravel-auth0 SDK has Insufficient Entropy in Cookie Encryption

Impact

In applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies.

Am I Affected?

You are affected if you meet the following preconditions:

  • Applications using laravel-auth0 SDK, versions between 7.0.0 and 7.20.0
  • Laravel-auth0 SDK using the Auth0-PHP SDK versions between 8.0.0 to 8.18.0.

Resolution

Upgrade Auth0/laravel-auth0 to version 7.21.0 or greater.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability none.

Weakness class

GHSA-fmg6-246m-9g2v is classified as CWE-331: Insufficient Entropy. A generator is seeded with too little randomness, narrowing the range of outputs an attacker must search.

Affected software

GHSA-fmg6-246m-9g2v is recorded against 1 package.

  • auth0/login (from 7.0.0 up to 7.21.0)

Timeline and source

Published on 3 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Package)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CWE CWE-331
Public Exploit ✅ No
Source OSV
Published 2026-04-03
Updated 2026-08-20
Modified 2026-04-03
Fix URL N/A

Affected Packages

Software From version Fixed in
auth0/login 7.0.0 7.21.0

Similar Threats

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