CVE-2026-119127
ZITADEL 4.0.0 before 4.19.5 contains a host header injection vulnerability in the Login V2 UI that…
- Risk score
- 54/100
- CVSS
- 8.1 v3.1
- Published
- 29 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 victi…
- Affected
- See advisory
- Fix
- Upgrade the product to 4.19.5 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.1 high
- Remotely exploitable without logging in
References
Original 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.
Last activity 29 Oct 2026. Patch Forecast updates every hour.