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.

Reserved 2025-03-26 | Published 2025-03-31 | Updated 2025-03-31 | Assigner GitHub_M

Problem types

CWE-203: Observable Discrepancy

CWE-204: Observable Response Discrepancy

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

>= 2.62.0, < 2.63.9
affected

>= 2.64.0-rc.1, < 2.64.6
affected

>= 2.65.0-rc.1, < 2.65.7
affected

>= 2.66.0-rc.1, < 2.66.16
affected

>= 2.67.0-rc.1, < 2.67.13
affected

>= 2.68.0-rc.1, < 2.68.9
affected

>= 2.69.0-rc.1, < 2.69.9
affected

>= 2.70.0-rc.1, < 2.70.8
affected

>= 2.71.0-rc.1, < 2.71.6
affected

References

github.com/...itadel/security/advisories/GHSA-67m4-8g4w-633q

github.com/...ommit/14de8ecac2afafee4975ed7ac26f3ca4a2b0f82c

github.com/zitadel/zitadel/releases/tag/v2.63.9

github.com/zitadel/zitadel/releases/tag/v2.64.6

github.com/zitadel/zitadel/releases/tag/v2.65.7

github.com/zitadel/zitadel/releases/tag/v2.66.16

github.com/zitadel/zitadel/releases/tag/v2.67.13

github.com/zitadel/zitadel/releases/tag/v2.68.9

github.com/zitadel/zitadel/releases/tag/v2.69.9

github.com/zitadel/zitadel/releases/tag/v2.70.8

github.com/zitadel/zitadel/releases/tag/v2.71.6

cve.org (CVE-2025-31124)

nvd.nist.gov (CVE-2025-31124)

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