GHSA-g2pf-ww5m-2r9mPublished

ZITADEL is missing enforcement of organization scopes

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cve-program · CVE-2026-33132

Published

ZITADEL is an open source identity management platform. Versions prior to 3.4.9 and 4.0.0 through 4.12.2 allowed users to bypass organization enforcement during authentication. Zitadel allows applications to enforce an organzation context during authentication using scopes (urn:zitadel:iam:org:id:{id} and urn:zitadel:iam:org:domain:primary:{domainname}). If enforced, a user needs to be part of the required organization to sign in. While this was properly enforced for OAuth2/OIDC authorization requests in login V1, corresponding controls were missing for device authorization requests and all login V2 and OIDC API V2 endpoints. This allowed users to bypass the restriction and sign in with users from other organizations. Note that this enforcement allows for an additional check during authentication and applications relying on authorizations / roles assignments are not affected by this bypass. This issue has been patched in versions 3.4.9 and 4.12.3.

Source published: 20 Mar 2026 10:21:19 UTC
Source modified: 20 Mar 2026 19:31:30 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

euvd · EUVD-2026-13674

Published

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datePublished: Mar 20, 2026, 10:21:19 AM

dateUpdated: Mar 20, 2026, 7:31:30 PM

Source published: Mar 20, 2026, 10:21:19 AM (timezone not stated)
Source modified: Mar 20, 2026, 7:31:30 PM (timezone not stated)
Saved here: 13 Nov 2026 17:10:14 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvd · CVE-2026-33132

Published

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Source analysis status: Analyzed

Weakness classifications: CWE-863

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published: 2026-03-20T11:18:02.857

lastModified: 2026-06-17T10:37:00.110

1 source CPE criteria · context only

cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*

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Source published: 20 Mar 2026 11:18:02 UTC
Source modified: 17 Jun 2026 10:37:00 UTC
Saved here: 25 Oct 2026 08:17:18 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

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CVSS 3.1 · [email protected] · Secondary · 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

osv · GHSA-g2pf-ww5m-2r9m

Published

### Summary A vulnerability in Zitadel's OAuth2/OIDC interface, which allowed users to bypass organization enforcement during authentication. ### Impact Zitadel allows applications to enforce an organzation context during authentication using [scopes](https://zitadel.com/docs/apis/openidoauth/scopes#reserved-scopes) (`urn:zitadel:iam:org:id:{id}` and `urn:zitadel:iam:org:domain:primary:{domainname}`). If enforced, a user needs to be part of the required organization to sign in. While this was properly enforced for OAuth2/OIDC authorization requests in login V1, corresponding controls were missing for device authorization requests and all login V2 and OIDC API V2 endpoints. This allowed users to bypass the restriction and sign in with users from other organizations. Note that this enforcement allows for an additional check during authentication and applications relying on authorizations / roles assignments are not affected by this bypass. ### Affected Versions Systems running one of the following versions are affected: - **4.x**: `4.0.0` through `4.12.2` (including RC versions) - **3.x**: `3.0.0` through `3.4.8` (including RC versions) ### Patches The vulnerability has been addressed in the latest releases. The patch resolves the issue by validating the provided scopes and enforcing the organization existence when processing the authorization request. Additionally it will prevent the use of a session of a user which does not belong to the required organization on the OIDC service endpoints ([CreateCallback](https://zitadel.com/docs/reference/api/oidc/zitadel.oidc.v2.OIDCService.CreateCallback) and [Authorize or Deny Device Authorization](https://zitadel.com/docs/reference/api/oidc/zitadel.oidc.v2.OIDCService.AuthorizeOrDenyDeviceAuthorization) endpoints). 4.x: Upgrade to >=[4.12.3](https://github.com/zitadel/zitadel/releases/tag/v4.12.3) 3.x: Update to >=[3.4.9](https://github.com/zitadel/zitadel/releases/tag/v3.4.9) ### Workarounds The recommended solution is to upgrade to a patched version. ### Questions If you have any questions or comments about this advisory, please email us at [[email protected]](mailto:[email protected]) ### Credits Thanks to @motoki317 for reporting this vulnerability.

Source published: 18 Mar 2026 17:25:41 UTC
Source modified: 10 Sep 2026 03:50:39 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Publisher rating · MODERATE

osv · GO-2026-4751

Published

Zitadel is missing enforcement of organization scopes 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 v3.0.0-rc.1 before v3.4.9, from v4.0.0-rc.1 before v4.12.3.

Source published: 23 Mar 2026 18:14:51 UTC
Source modified: 2 Apr 2026 20:59:30 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

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