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Zitadel CVE-2026-32131

HIGH
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-03-11 security-advisories@github.com
7.7
CVSS 3.1 · GitHub Advisory
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privilege API token
  2. Exploit
    Craft Management API request with different tenant ID
  3. Execution
    Retrieve cross-tenant organization data
  4. Impact
    Exfiltrate sensitive resources

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Object-level authorization, IDOR prevention
Exploitation Conditions

Authenticated user possessing valid low-privilege token (project.read, project.grant.read, or project.app.read) against ZITADEL Management API versions prior to 3.4.8 (v3) or 4.12.2 (v4) with multi-tenant deployment.

Impact

CVSS 7.7 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation requires authentication.

Exploit ScenarioDerived

An attacker (requires authentication) could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

ZITADEL is an open source identity management platform. versions up to 3.4.8 is affected by authorization bypass through user-controlled key (CVSS 7.7).

RemediationAI

Fixed in version 3.4.8. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affects ZITADEL is an open source identity management platform.. ZITADEL is an open source identity management platform. Prior to 3.4.8 and 4.12.2, a vulnerability in Zitadel's Management API has been reported, which allowed authenticated users holding a valid low-privilege token (e.g., project.read, project.grant.read, or project.app.read) to retrieve management-plane information belonging to other organizations by specifying a different tenant’s project_id, grant_id, or app_id. This vulnerability is fixed in 3.4.8 and 4.12.2.

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Severity by source

GitHub Advisory PRIMARY 7.7 HIGH
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

DescriptionGitHub Advisory

ZITADEL is an open source identity management platform. Prior to 3.4.8 and 4.12.2, a vulnerability in Zitadel's Management API has been reported, which allowed authenticated users holding a valid low-privilege token (e.g., project.read, project.grant.read, or project.app.read) to retrieve management-plane information belonging to other organizations by specifying a different tenant’s project_id, grant_id, or app_id. This vulnerability is fixed in 3.4.8 and 4.12.2.

Executive ViewAI

Why It Matters

ZITADEL identity management systems running versions 3.4.8 and earlier contain a critical authorization bypass vulnerability that could allow attackers to gain unauthorized access to user accounts and sensitive systems. This affects any organization using ZITADEL for authentication and identity governance, potentially compromising user data, application access controls, and compliance posture.

Business Impact: High
Compensating Controls

Implement WAF rules to restrict direct API calls to ZITADEL key management endpoints; enforce network segmentation isolating ZITADEL from non-essential services; disable programmatic API access where not actively required; implement additional authentication factors (MFA/2FA) for all critical application access; increase monitoring and alerting for failed authentication attempts and permission changes; restrict ZITADEL administrative access to minimal required personnel; consider temporarily restricting external access to systems relying on ZITADEL authentication pending patch availability.

Threat Intelligence Overview

EPSS Score
0.0%
Top 93% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)GitHub Advisory

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

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CVE-2026-105211 CRITICAL
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Remote account takeover in ZITADEL versions before 4.17.1 allows unauthenticated attackers to compromise MFA-protected a

CVE-2025-27507 CRITICAL
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CVE-2024-49757 MEDIUM POC
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