SB2023082958 - Observable Response Discrepancy in authentik
Published: August 29, 2023 Updated: April 23, 2026
Security Bulletin ID
SB2023082958
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Observable Response Discrepancy (CVE-ID: CVE-2023-39522)
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to observable response discrepancy in the recovery flow identification stage when handling recovery flow requests. A remote attacker can submit crafted username or email values to disclose sensitive information.
Only setups configured with a recovery flow are vulnerable, and enumeration may be possible by username, email, or both depending on configuration.
Remediation
Install update from vendor's website.