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GHSA-w3wc-44p4-m4j7

HighCVSS 8.2 / 10
Published Apr 1, 2026·Last modified Apr 1, 2026
Affected Components(0)

No affected components available

Description

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?

Consumers are affected if their application meets the following preconditions:

  • Their application is using the Auth0-PHP SDK, versions between 8.0.0 and 8.18.0
  • Their application is using the Auth0-PHP SDK, or the following SDKs that rely on the Auth0-PHP SDK:
    • Auth0/symfony,
    • Auth0/laravel0-auth0, or
    • Auth0/wordpress

Resolution

Upgrade Auth0/Auth0-PHP to version 8.19.0 or greater.

Risk Scores
Base Score
8.2

The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data.

Threat Intelligence
7.5

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
0.22%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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