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Permalink CVE-2026-23511

5.3 MEDIUM

CVSS version: 3.1
Attack vector (AV): NETWORK
Attack complexity (AC): LOW
Privileges required (PR): NONE
User interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality impact (C): LOW
Integrity impact (I): NONE
Availability impact (A): NONE

created 3 months ago

ZITADEL has a user enumeration vulnerability in Login UIs

ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating through usernames and userIDs. This vulnerability is fixed in 4.9.1 and 3.4.6.

References

https://github.com/zitadel/zitadel/security/advisories/GHSA-pvm5-9frx-264r x_refsource_CONFIRM
https://github.com/zitadel/zitadel/commit/b85ab69e4679b0268e2b0e9b4cd04e934af10dd2 x_refsource_MISC
https://github.com/zitadel/zitadel/commit/c300d4cc6a2775ab17ddfe76492f24170f8b858d x_refsource_MISC
https://github.com/zitadel/zitadel/releases/tag/v3.4.6 x_refsource_MISC
https://github.com/zitadel/zitadel/releases/tag/v4.9.1 x_refsource_MISC

Affected products

zitadel

==>= 4.0.0, < 4.9.1
==< 3.4.6

Matching in nixpkgs

pkgs.zitadel

Identity and access management platform

nixos-unstable 2.71.7
- nixpkgs-unstable 2.71.7
- nixos-unstable-small 2.71.7
nixos-25.11 2.71.7

pkgs.zitadel-tools

Helper tools for zitadel

nixos-unstable 0.5.0
- nixpkgs-unstable 0.5.0
- nixos-unstable-small 0.5.0
nixos-25.11 0.5.0

Package maintainers

@nrabulinski Nikodem Rabuliński <1337-nix@nrab.lol>