CVE-2025-64717
ZITADEL vulnerable to Account Takeover with deactivated Instance IdP
ZITADEL is an open source identity management platform. Starting in version 2.50.0 and prior to versions 2.71.19, 3.4.4, and 4.6.6, a vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding IdP was not active or if the organization did not allow federated authentication. This vulnerability stems from the platform's failure to correctly check or enforce an organization's specific security settings during the authentication flow. An Organization Administrator can explicitly disable an IdP or disallow federation, but this setting was not being honored during the auto-linking process. This allowed an unauthenticated attacker to initiate a login using an IdP that should have been disabled for that organization. The platform would incorrectly validate the login and, based on a matching criteria, link the attacker's external identity to an existing internal user account. This may result in a full Account Takeover, bypassing the organization's mandated security controls. Note that accounts with MFA enabled can not be taken over by this attack. Also note that only IdPs create on an instance level would allow this to work. IdPs registered on another organization would always be denied in the (auto-)linking process. Versions 4.6.6, 3.4.4, and 2.71.19 resolve the issue by correctly validating the organization's login policy before auto-linking an external user. No known workarounds are available aside from upgrading.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
ZITADEL vulnerable to Account Takeover with deactivated Instance IdP
ZITADEL is an open source identity management platform. Starting in version 2.50.0 and prior to versions 2.71.19, 3.4.4, and 4.6.6, a vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding IdP was not active or if the organization did not allow federated authentication. This vulnerability stems from the platform's failure to correctly check or enforce an organization's specific security settings during the authentication flow. An Organization Administrator can explicitly disable an IdP or disallow federation, but this setting was not being honored during the auto-linking process. This allowed an unauthenticated attacker to initiate a login using an IdP that should have been disabled for that organization. The platform would incorrectly validate the login and, based on a matching criteria, link the attacker's external identity to an existing internal user account. This may result in a full Account Takeover, bypassing the organization's mandated security controls. Note that accounts with MFA enabled can not be taken over by this attack. Also note that only IdPs create on an instance level would allow this to work. IdPs registered on another organization would always be denied in the (auto-)linking process. Versions 4.6.6, 3.4.4, and 2.71.19 resolve the issue by correctly validating the organization's login policy before auto-linking an external user. No known workarounds are available aside from upgrading.
- Record
CVE-2025-64717- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-287
- Updated
- 2026-11-02
EUVDEUVD-2025-175316
ZITADEL is an open source identity management platform. Starting in version 2.50.0 and prior to versions 2.71.19, 3.4.4, and 4.6.6, a vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding IdP was not active or if the organization did not allow federated authentication. This vulnerability stems from the platform's failure to correctly check or enforce an organization's specific security settings during the authentication flow. An Organization Administrator can explicitly disable an IdP or disallow federation, but this setting was not being honored during the auto-linking process. This allowed an unauthenticated attacker to initiate a login using an IdP that should have been disabled for that organization. The platform would incorrectly validate the login and, based on a matching criteria, link the attacker's external identity to an existing internal user account. This may result in a full Account Takeover, bypassing the organization's mandated security controls. Note that accounts with MFA enabled can not be taken over by this attack. Also note that only IdPs create on an instance level would allow this to work. IdPs registered on another organization would always be denied in the (auto-)linking process. Versions 4.6.6, 3.4.4, and 2.71.19 resolve the issue by correctly validating the organization's login policy before auto-linking an external user. No known workarounds are available aside from upgrading.
- Record
EUVD-2025-175316- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-j4g7-v4m4-77px
ZITADEL is vulnerable to Account Takeover with deactivated Instance IdP
Summary
A vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding IdP was not active or if the organization did not allow federated authentication.
Impact
This vulnerability stems from the platform's failure to correctly check or enforce an organization's specific security settings during the authentication flow. An Organization Administrator can explicitly disable an IdP or disallow federation, but this setting was not being honored during the auto-linking process.
This allowed an unauthenticated attacker to initiate a login using an IdP that should have been disabled for that organization. The platform would incorrectly validate the login and, based on a matching criteria, link the attacker's external identity to an existing internal user account.
This may result in a full Account Takeover, bypassing the organization's mandated security controls. Note that accounts with MFA enabled can not be taken over by this attack. Also note that only IdPs create on an instance level would allow this to work. IdPs registered on another organization would always be denied in the (auto-)linking process.
Affected Versions
Systems running one of the following versions are affected:
- v4.x:
4.0.0-rc.1through4.6.5 - v3.x:
3.0.0-rc.1through3.4.3 - v2.x:
2.50.0through2.71.18
Patches
The vulnerability has been addressed in the latest release. The patch resolves the issue by correctly validating the organization's login policy before auto-linking an external user.
- v4.x: Upgrade to version 4.6.6 or later.
- v3.x: Update to version 3.4.4 or later.
- v2.x: Update to version 2.71.19 or later.
Workarounds
Upgrading to a patched version is the recommended solution.
Questions
If you have any questions or comments about this advisory, please email Zitadel at [email protected]
Credits
Thanks to Jan Kühnlein - kultify for finding and reporting the vulnerability.
- Record
GHSA-j4g7-v4m4-77px- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-287
- Updated
- 2026-11-02
NVD
ZITADEL is an open source identity management platform. Starting in version 2.50.0 and prior to versions 2.71.19, 3.4.4, and 4.6.6, a vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding IdP was not active or if the organization did not allow federated authentication. This vulnerability stems from the platform's failure to correctly check or enforce an organization's specific security settings during the authentication flow. An Organization Administrator can explicitly disable an IdP or disallow federation, but this setting was not being honored during the auto-linking process. This allowed an unauthenticated attacker to initiate a login using an IdP that should have been disabled for that organization. The platform would incorrectly validate the login and, based on a matching criteria, link the attacker's external identity to an existing internal user account. This may result in a full Account Takeover, bypassing the organization's mandated security controls. Note that accounts with MFA enabled can not be taken over by this attack. Also note that only IdPs create on an instance level would allow this to work. IdPs registered on another organization would always be denied in the (auto-)linking process. Versions 4.6.6, 3.4.4, and 2.71.19 resolve the issue by correctly validating the organization's login policy before auto-linking an external user. No known workarounds are available aside from upgrading.
- Record
CVE-2025-64717- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-287
- Updated
- 2026-11-02
OSV
ZITADEL vulnerable to Account Takeover with deactivated Instance IdP
ZITADEL is an open source identity management platform. Starting in version 2.50.0 and prior to versions 2.71.19, 3.4.4, and 4.6.6, a vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding IdP was not active or if the organization did not allow federated authentication. This vulnerability stems from the platform's failure to correctly check or enforce an organization's specific security settings during the authentication flow. An Organization Administrator can explicitly disable an IdP or disallow federation, but this setting was not being honored during the auto-linking process. This allowed an unauthenticated attacker to initiate a login using an IdP that should have been disabled for that organization. The platform would incorrectly validate the login and, based on a matching criteria, link the attacker's external identity to an existing internal user account. This may result in a full Account Takeover, bypassing the organization's mandated security controls. Note that accounts with MFA enabled can not be taken over by this attack. Also note that only IdPs create on an instance level would allow this to work. IdPs registered on another organization would always be denied in the (auto-)linking process. Versions 4.6.6, 3.4.4, and 2.71.19 resolve the issue by correctly validating the organization's login policy before auto-linking an external user. No known workarounds are available aside from upgrading.
- Record
CVE-2025-64717- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-287
- Updated
- 2026-11-02
OSVGHSA-j4g7-v4m4-77px
ZITADEL is vulnerable to Account Takeover with deactivated Instance IdP
Summary
A vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding IdP was not active or if the organization did not allow federated authentication.
Impact
This vulnerability stems from the platform's failure to correctly check or enforce an organization's specific security settings during the authentication flow. An Organization Administrator can explicitly disable an IdP or disallow federation, but this setting was not being honored during the auto-linking process.
This allowed an unauthenticated attacker to initiate a login using an IdP that should have been disabled for that organization. The platform would incorrectly validate the login and, based on a matching criteria, link the attacker's external identity to an existing internal user account.
This may result in a full Account Takeover, bypassing the organization's mandated security controls. Note that accounts with MFA enabled can not be taken over by this attack. Also note that only IdPs create on an instance level would allow this to work. IdPs registered on another organization would always be denied in the (auto-)linking process.
Affected Versions
Systems running one of the following versions are affected:
- v4.x:
4.0.0-rc.1through4.6.5 - v3.x:
3.0.0-rc.1through3.4.3 - v2.x:
2.50.0through2.71.18
Patches
The vulnerability has been addressed in the latest release. The patch resolves the issue by correctly validating the organization's login policy before auto-linking an external user.
- v4.x: Upgrade to version 4.6.6 or later.
- v3.x: Update to version 3.4.4 or later.
- v2.x: Update to version 2.71.19 or later.
Workarounds
Upgrading to a patched version is the recommended solution.
Questions
If you have any questions or comments about this advisory, please email Zitadel at [email protected]
Credits
Thanks to Jan Kühnlein - kultify for finding and reporting the vulnerability.
- Record
GHSA-j4g7-v4m4-77px- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-287
- Updated
- 2026-11-02
OSVGO-2025-4124 No score
ZITADEL is vulnerable to Account Takeover with deactivated Instance IdP in github.com/zitadel/zitadel
ZITADEL is vulnerable to Account Takeover with deactivated Instance IdP in github.com/zitadel/zitadel.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: github.com/zitadel/zitadel from v2.50.0 before v2.71.19, from v3.0.0-rc.1 before v3.4.4, from v4.0.0-rc.1 before v4.6.6.
- Record
GO-2025-4124- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:21483-1 No score
Security update for govulncheck-vulndb
This update for govulncheck-vulndb fixes the following issues:
- Update to version 0.0.20260723T184607 2026-07-23T18:46:07Z (jsc#PED-11136).
Go CVE Numbering Authority IDs added or updated with aliases:
- GO-2026-4730 CVE-2026-33022 GHSA-cv4x-93xx-wgfj
- GO-2026-4761 CVE-2026-33211 GHSA-j5q5-j9gm-2w5c
- GO-2026-5102 CVE-2026-45021 GHSA-3vcp-chfh-f6r2
- GO-2026-5272 CVE-2026-40938 GHSA-94jr-7pqp-xhcq
- GO-2026-5486 CVE-2026-40924 GHSA-m2cx-gpqf-qf74
- GO-2026-5542 CVE-2026-40090 GHSA-pj97-4p9w-gx3q
- GO-2026-5630 CVE-2026-25542 GHSA-rmx9-2pp3-xhcr
- GO-2026-5643 CVE-2026-40923 GHSA-rx35-6rhx-7858
- GO-2026-5675 CVE-2026-41492 GHSA-vvf7-6rmr-m29q
- GO-2026-5711 CVE-2026-40161 GHSA-wjxp-xrpv-xpff
- GO-2026-5746 CVE-2026-41567 GHSA-x86f-5xw2-fm2r
- GO-2026-5749 CVE-2026-41328 GHSA-x92x-px7w-4gx4
- GO-2026-5837 CVE-2026-44840 GHSA-q2m9-6jp9-c6mc
- GO-2026-5929 CVE-2026-44342 GHSA-26v7-h57m-gh9m
- GO-2026-5930 CVE-2026-33655 GHSA-6qcr-qxgr-m7fv
- GO-2026-5933 GHSA-3g4q-2f67-2gvh
- GO-2026-5934 GHSA-59qp-cfj3-rp64
- GO-2026-5935 GHSA-7856-g3gv-9wq8
- GO-2026-5936 CVE-2026-53552 GHSA-26rh-24rg-j3vv
- GO-2026-5937 CVE-2026-53508 GHSA-2jcc-mxv7-p3f9
- GO-2026-5938 CVE-2026-53553 GHSA-4g5x-hcwm-82jw
- GO-2026-5939 CVE-2026-10517 GHSA-698x-9w2p-7vvp
- GO-2026-5940 CVE-2026-53572 GHSA-6w3m-4hhp-775q
- GO-2026-5941 CVE-2026-53487 GHSA-gvhc-wv3v-7pf8
- GO-2026-5942 CVE-2026-46600
- GO-2026-5944 CVE-2026-50197 GHSA-659f-rgp5-w4wf
- GO-2026-5945 CVE-2026-6815 GHSA-rmxx-v9rj-vpvg
- GO-2026-5946 CVE-2026-52831 GHSA-v5px-423j-pf7p
- GO-2026-5947 CVE-2026-53649 GHSA-xqhv-chqm-fhcc
- GO-2026-5948 CVE-2026-50554 GHSA-588f-fvcv-xhvf
- GO-2026-5949 CVE-2026-50553 GHSA-rqrh-8wpv-x7hh
- GO-2026-5950 CVE-2026-53602 GHSA-339v-266x-79xr
- GO-2026-5951 CVE-2026-10219 GHSA-6jm8-4fhr-5w64
- GO-2026-5952 CVE-2026-49834 GHSA-9vcr-p3rj-q5q6
- GO-2026-5953 CVE-2026-9094 GHSA-c9w5-qp6m-m395
- GO-2026-5956 CVE-2026-55252 GHSA-h5g6-xmh4-hc37
- GO-2026-5957 CVE-2026-54158 GHSA-5xfx-xj4h-5p7r
- GO-2026-5958 CVE-2026-54068 GHSA-gcm7-57gf-953c
- GO-2026-5959 CVE-2026-54072 GHSA-h29v-hj44-q8cv
- GO-2026-5961 CVE-2026-54069 GHSA-hvr9-72v2-fff3
- GO-2026-5962 CVE-2026-54088 GHSA-m93h-4hw7-5qcm
- GO-2026-5963 CVE-2026-54067 GHSA-mvjr-vv3c-w4qv
- GO-2026-5964 CVE-2026-54066 GHSA-p4m3-mgmm-c664
- GO-2026-5965 CVE-2026-54070 GHSA-w7cg-whh7-xp28
- GO-2026-5966 CVE-2026-54089 GHSA-xqp3-jq6g-x3qm
- GO-2026-5967 CVE-2026-50551 GHSA-56mp-4f3v-fgj2
- GO-2026-5968 CVE-2026-54174 GHSA-fpg8-7664-jc5q
- GO-2026-5969 GHSA-g936-7jqj-mwv8
- GO-2026-5970 CVE-2026-56852
- GO-2026-5973 CVE-2026-54250 GHSA-jxr7-mqhw-9p98
- GO-2026-5974 CVE-2026-44300 GHSA-wmj8-9953-vff5
- GO-2026-5975 CVE-2026-50018 GHSA-42j2-w334-qxw7
- GO-2026-5976 CVE-2026-50141 GHSA-g7mm-9vx7-jm7h
- GO-2026-5977 CVE-2026-50013 GHSA-qrh4-p6v4-mrfg
- GO-2026-5978 CVE-2026-50125 GHSA-qw5r-ppcg-f8rj
- GO-2026-5979 CVE-2026-50006 GHSA-xrcf-6jh3-ggvx
- GO-2026-5980 CVE-2026-50158 GHSA-2c7f-fxww-6w6c
- GO-2026-5981 GHSA-mqxv-9rm6-w8qc
- GO-2026-5982 GHSA-pqg7-v6wh-3pfp
- GO-2026-5984 CVE-2026-53604 GHSA-2p2f-px33-4vv5
- GO-2026-5985 GHSA-7rx3-5wx3-5v76
- GO-2026-5986 CVE-2026-61699 GHSA-cm26-5974-52h8
- GO-2026-5987 CVE-2026-55513 GHSA-g4x6-jcvr-9m3g
- GO-2026-5988 CVE-2026-54628 GHSA-hwrq-8wxh-q4xv
- GO-2026-5989 CVE-2026-55512 GHSA-m3cx-mwpg-32jg
- GO-2026-5990 CVE-2026-54629 GHSA-mf78-3rpf-r784
- GO-2026-5991 CVE-2026-53603 GHSA-q4vm-pq3q-8wgq
- GO-2026-5992 CVE-2026-61549 GHSA-qf34-295c-26v8
- GO-2026-5996 CVE-2026-54450 GHSA-pph6-vfjv-vpjw
- GO-2026-5997 CVE-2026-54452 GHSA-xgch-x3mx-cm3c
- GO-2026-5998 CVE-2026-54495 GHSA-398h-7f66-3h4p
- GO-2026-5999 CVE-2026-10814 GHSA-jh6h-v6mp-h22v
- GO-2026-6002 CVE-2026-58196 GHSA-pr64-jmmf-jp54
- GO-2026-6003 CVE-2026-53714 GHSA-22xc-xg2r-9j7v
- GO-2026-6004 CVE-2026-52833 GHSA-3v79-m2cg-89ww
- GO-2026-6005 CVE-2026-53715 GHSA-8fv2-88gg-hm7q
- GO-2026-6006 CVE-2026-53716 GHSA-cxpq-8v7q-cg56 *…
- Record
openSUSE-SU-2026:21483-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/zitadel/zitadelGo |
4.0.0-rc.1 up to 4.6.6 | 4.6.6 |
github.com/zitadel/zitadelGo |
3.0.0-rc.1 up to 3.4.4 | 3.4.4 |
github.com/zitadel/zitadelGo |
2.50.0 up to 2.71.19 | 2.71.19 |
github.com/zitadel/zitadelGo |
1.80.0-v2.20.0.20240403060621-5b3946b67ef6 up to 1.80.0-v2.20.0.20251112124840-33c51deb2040 | 1.80.0-v2.20.0.20251112124840-33c51deb2040 |
govulncheck-vulndbopenSUSE:Leap 16.0 From an advisory covering 1734 CVEs |
before 0.0.20260723T184607-160000.1.1 | 0.0.20260723T184607-160000.1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-64717 is a high vulnerability (CVSS 7.4) in Zitadel, published November 13, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 42nd percentile. Fixed in github.com/zitadel/zitadel 4.6.6.
References
github.com/zitadel/zitadel/security/advisories/GHSA-j4g7-v4m4-77px
nvd.nist.gov/vuln/detail/CVE-2025-64717
Show 194 moreShow less
suse.com/security/cve/CVE-2016-11063
Left out here: 1,543 references and the rest of 1 source description. The JSON record has them.