CVE-2026-105207
- Source
- https://cve.org/CVERecord?id=CVE-2026-105207
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105207.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-105207
- Aliases
-
- GHSA-g8gj-gq47-xgf4
- Published
- 2026-10-04T13:10:02Z
- Modified
- 2026-10-21T02:30:30Z
- Severity
-
- 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- ZITADEL before 4.17.3 Account Takeover via External IdP Linking
- Details
-
ZITADEL 3.0.0 through 3.4.15 and 4.0.0 before 4.17.3 creates links between user accounts and external identity providers without verifying a primary factor or the caller's permission, including on identify-only Login V2 sessions and via the User Service V2 AddIDPLink endpoint. An unauthenticated attacker knowing a victim's login name can bind their own external IdP identity to the victim's account and then sign in as the victim.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-306" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105207.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105207.json
- https://github.com/zitadel/zitadel/security/advisories/GHSA-g8gj-gq47-xgf4
- https://nvd.nist.gov/vuln/detail/CVE-2026-105207
- https://www.vulncheck.com/advisories/zitadel-before-4.17.3-account-takeover-via-external-idp-linking
Affected packages
Git / github.com/zitadel/zitadel
Affected ranges
- Type
- GIT
- Repo
- https://github.com/zitadel/zitadel
- Events
-
IntroducedLast AffectedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "3.0.0" }, { "last_affected": "3.4.15" } ], "source": "DESCRIPTION" }, { "range": [ { "introduced": "4.0.0" }, { "fixed": "4.17.3" } ], "source": "DESCRIPTION" } ] }
Affected versions
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.1.0
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v3.3.0
v3.3.1
v3.3.2
v3.3.3
v3.3.4
v3.3.5
v3.3.6
v3.4.0
v3.4.1
v3.4.10
v3.4.11
v3.4.12
v3.4.13
v3.4.14
v3.4.15
v3.4.2
v3.4.3
v3.4.4
v3.4.5
v3.4.6
v3.4.7
v3.4.8
v3.4.9
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.0.3
v4.1.0
v4.1.1
v4.1.2
v4.1.3
v4.1.4
v4.10.0
v4.10.1
v4.11.0
v4.11.1
v4.12.0
v4.12.1
v4.12.2
v4.12.3
v4.13.0
v4.13.1
v4.14.0
v4.15.0
v4.15.1
v4.15.2
v4.15.3
v4.16.0
v4.16.1
v4.16.2
v4.16.3
v4.17.0
v4.17.1
v4.17.2
v4.2.0
v4.2.1
v4.2.2
v4.3.0
v4.3.1
v4.3.2
v4.3.3
v4.4.0
v4.5.0
v4.6.0
v4.6.1
v4.6.2
v4.6.3
v4.6.4
v4.6.5
v4.6.6
v4.7.0
v4.7.1
v4.7.2
v4.7.3
v4.7.4
v4.7.5
v4.7.6
v4.8.0
v4.8.1
v4.9.0
v4.9.1
v4.9.2