CVE-2026-105208
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
47/100
Published: 2026-10-04
Modified: 2026-10-29
First seen: 2026-10-29
Status: active
Attack Surface
Network
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
Low
UI:
Passive
AT:
Present
VC:
High
VI:
High
VA:
None
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.
Weakness Classification (1)
Affected Software (4)
References & Advisories (2)
vendor-advisory
third-party-advisory