CVE-2025-31124Zitadel allows User Enumeration by loginname attribute normalization
- 5.3MediumCVSS base score
- 0.53%Exploitation in 30 daysEPSS · top 55% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By GitHub_M
- 5 days later
· 5 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Analyzed | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.53% · top 55% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Affected products
- affected >= 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
References
References11
- https://github.com/zitadel/zitadel/security/advisories/GHSA-67m4-8g4w-633q (opens in a new tab)x_refsource_CONFIRM
- https://github.com/zitadel/zitadel/commit/14de8ecac2afafee4975ed7ac26f3ca4a2b0f82c (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.63.9 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.64.6 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.65.7 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.66.16 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.67.13 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.68.9 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.69.9 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.70.8 (opens in a new tab)x_refsource_MISC
- https://github.com/zitadel/zitadel/releases/tag/v2.71.6 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-8871 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-31124)Record last updated .