GHSA-f3r2-88mq-9v4g

Suggest an improvement
Source
https://github.com/advisories/GHSA-f3r2-88mq-9v4g
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-f3r2-88mq-9v4g/GHSA-f3r2-88mq-9v4g.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-f3r2-88mq-9v4g
Related
Published
2025-12-17T20:56:37Z
Modified
2026-02-04T04:20:53Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Auth0 Symfony SDK has Improper Audience Validation via Auth0-PHP SDK
Details

Description

In applications built with the Auth0-PHP SDK, the audience validation in access tokens is performed improperly. Without proper validation, affected applications may accept ID tokens as Access tokens.

Affected product and versions

Projects are affected if they meet the following preconditions:

  • Applications using the Auth0 Symfony SDK with versions between 5.0.0 and 5.5.0
  • Auth0 Symfony SDK uses the Auth0-PHP SDK with versions between 8.0.0 and 8.17.0.

Resolution

Upgrade Auth0/symfony to version 5.6.0 or greater.

Acknowledgement

Okta would like to thank Jafar Sadiq (iaf4r) for their discovery and responsible disclosure.

Database specific
{
    "cwe_ids":  [
        "CWE-1395",
        "CWE-345",
        "CWE-863"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2025-12-17T20:56:37Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}
References

Affected packages

Packagist / auth0/symfony

Package

Name
auth0/symfony
Purl
pkg:composer/auth0/symfony

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0.0
Fixed
5.6.0

Affected versions

5.*
5.0.0
5.1.0
5.2.0
5.2.1
5.2.2
5.2.3
5.3.0
5.3.1
5.4.0
5.4.1
5.5.0

Database specific

last_known_affected_version_range
"<= 5.5.0"
source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-f3r2-88mq-9v4g/GHSA-f3r2-88mq-9v4g.json"