EUVD-2026-158337

fkie_cve-2024-28855

ZITADEL, open source authentication management software, uses Go templates to render the login UI. Due to a improper use of the `text/template` instead of the `html/template` package, the Login UI did not sanitize input parameters prior to versions 2.47.3, 2.46.1, 2.45.1, 2.44.3, 2.43.9, 2.42.15, and 2.41.15. An attacker could create a malicious link, where he injected code which would be rendered as part of the login screen. While it was possible to inject HTML including JavaScript, the execution of such scripts would be prevented by the Content Security Policy. Versions 2.47.3, 2.46.1, 2.45.1, 2.44.3, 2.43.9, 2.42.15, and 2.41.15 contain a patch for this issue. No known workarounds are available.

GHSA-hfrg-4jwr-jfpj — Improper HTML sanitization in ZITADEL

Affected: Go: github.com/zitadel/zitadel

### Impact

ZITADEL uses Go templates to render the login UI.

Due to a improper use of the `text/template` instead of the `html/template` package, the Login UI did not sanitize input parameters. An attacker could create a malicious link, where he injected code which would be rendered as part of the login screen. While it was possible to inject HTML including javascript, the execution of such scripts would be prevented by the Content Security Policy.

### Patches

2.x versions are fixed on >= [2.47.3](https://github.com/zitadel/zitadel/releases/tag/v2.47.3) 2.46.x versions are fixed on >= [2.46.1](https://github.com/zitadel/zitadel/releases/tag/v2.46.1) 2.45.x versions are fixed on >= [2.45.1](https://github.com/zitadel/zitadel/releases/tag/v2.45.1) 2.44.x versions are fixed on >= [2.44.3](https://github.com/zitadel/zitadel/releases/tag/v2.44.3) 2.43.x versions are fixed on >= [2.43.9](https://github.com/zitadel/zitadel/releases/tag/v2.43.9) 2.42.x versions are fixed on >= [2.42.15](https://github.com/zitadel/zitadel/releases/tag/v2.42.15) 2.41.x versions are fixed on >= [2.41.15](https://github.com/zitadel/zitadel/releases/tag/v2.41.15)

ZITADEL recommends upgrading to the latest versions available in due course.

### Workarounds

There is no workaround since a patch is already available.

### Questions

If you have any questions or comments about this advisory, please email us at [security@zitadel.com](mailto:security@zitadel.com)

### Credits

Thanks to Daniel Philipp - o…

Most recent entries from all

EUVD-2026-158337

fkie_cve-2024-28855

GHSA-hfrg-4jwr-jfpj — Improper HTML sanitization in ZITADEL

gsd-2024-28855