ZITADEL before 4.17.3 Session Hijacking via Forgeable IdP Intent Tokens
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.
CVE-2026-105208
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-105208
zitadel
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
zitadel
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "zitadel",
"product": "zitadel",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "4.17.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.17.3",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "zitadel",
"product": "zitadel",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "4.19.4"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-105208
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #8749 · Revision 1
- Added to Heist Feed
- Publisher date