Vulnerability in Zitadel

CVE-2023-44399

ZITADEL provides identity infrastructure. In versions 2.37.2 and prior, ZITADEL administrators can enable a setting called "Ignoring unknown usernames" which helps mitigate attacks that try to guess/enumerate usernames. While this settings was properly working during the authentication process it did not work correctly on the password reset flow. This meant that even if this feature was active that an attacker could use the password reset function to verify if an account exist within ZITADEL. This bug has been patched in versions 2.37.3 and 2.38.0. No known workarounds are available.

EPSS: 0.005 (41.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-44399?
CVE-2023-44399 is a medium-severity vulnerability in Zitadel, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 5.3/10. Published 2023-10-10.
How severe is CVE-2023-44399?
Medium severity. CVSS v3 base score is 5.3 out of 10.