CVE-2026-105208
ZITADEL 4.x before 4.17.3 and 3.x through 3.4.15 protects IdP intent tokens with unauthenticated…
- Risk score
- 46/100
- CVSS
- 7.7 v3.1
- Exploit chance (30 days)
- 0.1%
- Published
- 4 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- ZITADEL 4.x before 4.17.3 and 3.x through 3.4.15 protects IdP intent tokens with unauthenticated, malleable encryption, allowing authenticated users to tamper with their own token so it is accepted for another user's external login intent. An attacker who predicts a victim's in-flight intent identifier and wins a timi…
- Affected
- See advisory
- Fix
- Upgrade the product to 4.17.3 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.7 high
References
Original description
ZITADEL 4.x before 4.17.3 and 3.x through 3.4.15 protects IdP intent tokens with unauthenticated, malleable encryption, allowing authenticated users to tamper with their own token so it is accepted for another user's external login intent. An attacker who predicts a victim's in-flight intent identifier and wins a timing race can call /v2/idp_intents or /v2/sessions to steal the victim's IdP tokens or hijack their session.
Last activity 4 Oct 2026. Patch Forecast updates every hour.