UpHeron
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Servers and applications

CVE-2025-31124

User Enumeration by loginname attribute normalization

Severity
Medium 5.3
Published
31 Mar 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.66.16, 2.67.13, 2.68.9, 2.69.9, 2.70.8, 2.71.6
Also known as
GHSA-67m4-8g4w-633q
Sources
NVD, Project advisories (GitHub)

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…

Affected software

SoftwareAffected versions
ZITADELServers and applications · cpe:a:zitadel:zitadel
  • From 2.71.0 before 2.71.6
  • From 2.70.0 before 2.70.8
  • From 2.69.0 before 2.69.9
  • From 2.68.0 before 2.68.9
All 9 release lines
  • Every version before 2.63.9
  • From 2.64.0 before 2.64.6
  • From 2.65.0 before 2.65.7
  • From 2.66.0 before 2.66.16
  • From 2.67.0 before 2.67.13
  • From 2.68.0 before 2.68.9
  • From 2.69.0 before 2.69.9
  • From 2.70.0 before 2.70.8
  • From 2.71.0 before 2.71.6
ZITADELServers and applications · github:zitadel/zitadel
  • Every version before 2.63.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-31124
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-31124
  • GitHub Advisory Database https://github.com/advisories/GHSA-67m4-8g4w-633q
  • github.com https://github.com/zitadel/zitadel/security/advisories/GHSA-67m4-8g4w-633q