Description
ZITADEL 4.0.0 before 4.19.5 contains a host header injection vulnerability in the Login V2 UI that allows unauthenticated attackers to poison password-reset, invite, and email-verification links by supplying untrusted x-zitadel-public-host, x-zitadel-forward-host, or x-forwarded-host headers. Attackers knowing a victim's login name can point the links in genuine emails at their host, harvest the single-use codes when the links are opened, and take over accounts including instance administrators.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| zitadel | zitadel | 4.0.0 – < 4.19.5 | 4.19.5 |
References
- GitHub Security Advisory (GHSA-mchc-246r-6m76) vendor-advisory
- VulnCheck Advisory: ZITADEL 4.0.0 before 4.19.5 Account Takeover via Login V2 Host Header Injection third-party-advisory