CVE-2026-33132Network attack vector

Cross-organization sign-in via missing scope enforcement

Published Mar 20, 2026 · Updated Mar 20, 2026

Authorization bypass in ZITADEL before 3.4.9 and 4.0.0 through 4.12.2 allows remote attackers to sign in across organizations. Device authorization requests and all Login V2 and OIDC API V2 endpoints omit validation that the session user belongs to the organization enforced by the requested scope. Exploitation requires an application to enforce an organization scope; role- or authorization-based application controls remain unaffected.

CVSS severity5.3
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in ZITADEL before 3.4.9 and 4.0.0 through 4.12.2 allows remote attackers to sign in across organizations. Device authorization requests and all Login V2 and OIDC API V2 endpoints omit validation that the session user belongs to the organization enforced by the requested scope. Exploitation requires an application to enforce an organization scope; role- or authorization-based application controls remain unaffected.

The record

CVE
CVE-2026-33132
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
ZITADEL
Product
ZITADEL
Classifications
CWE-863, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.80.0-v2.20.0.20260317120401-d90285929ca0
  2. Affected versionversion=>= 3.0.0-rc.1, < 3.4.9
  3. Affected versionversion=>= 4.0.0-rc.1, < 4.12.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ZITADEL · ZITADELversion=< 1.80.0-v2.20.0.20260317120401-d90285929ca0; version=>= 3.0.0-rc.1, < 3.4.9; version=>= 4.0.0-rc.1, < 4.12.3

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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