VYPR
← All advisories
Unrated severityNVD Advisory· Published Mar 31, 2025· Updated Mar 31, 2025

Zitadel allows User Enumeration by loginname attribute normalization

CVE-2025-31124

Description

Zitadel is open-source identity infrastructure software. ZITADEL administrators can enable a setting called "Ignoring unknown usernames" which helps mitigate attacks that try to guess/enumerate usernames. If enabled, ZITADEL will show the password prompt even if the user doesn't exist and report "Username or Password invalid". While the setting was correctly respected during the login flow, the user's username was normalized leading to a disclosure of the user's existence. This vulnerability is fixed in 2.71.6, 2.70.8, 2.69.9, 2.68.9, 2.67.13, 2.66.16, 2.65.7, 2.64.6, and 2.63.9.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Zitadel/Zitadelllm-fuzzy2 versions
    <2.63.9 or >=2.64.0 <2.64.6 or >=2.65.0 <2.65.7 or >=2.66.0 <2.66.16 or >=2.67.0 <2.67.13 or >=2.68.0 <2.68.9 or >=2.69.0 <2.69.9 or >=2.70.0 <2.70.8 or <2.71.6+ 1 more
    • (no CPE)range: <2.63.9 or >=2.64.0 <2.64.6 or >=2.65.0 <2.65.7 or >=2.66.0 <2.66.16 or >=2.67.0 <2.67.13 or >=2.68.0 <2.68.9 or >=2.69.0 <2.69.9 or >=2.70.0 <2.70.8 or <2.71.6
    • (no CPE)range: >= 2.62.0, < 2.63.9

Patches

Vulnerability mechanics

References

11

News mentions

0

No linked articles in our index yet.