Vulnerability-Lookup

CVE-2025-67717 (GCVE-0-2025-67717)

Vulnerability from cvelistv5 – Published: 2025-12-11 00:30 – Updated: 2025-12-11 18:43

Title

Zitadel Discloses the Total Number of Instance Users

Summary

ZITADEL is an open-source identity infrastructure tool. Versions 2.44.0 through 3.4.4 and 4.0.0-rc.1 through 4.7.1 disclose the total number of instance users to authenticated users, regardless of their specific permissions. While this does not leak individual user data or PII, disclosing the total user count via the totalResult field constitutes an information disclosure vulnerability that may be sensitive in certain contexts. This issue is fixed in versions 3.4.5 and 4.7.2.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-11 18:39 UTC

CWE

CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/zitadel/zitadel/security/advis…	x_refsource_CONFIRM
https://github.com/zitadel/zitadel/commit/826039c…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
zitadel	zitadel	Affected: < 1.80.0-v2.20.0.20251210 Affected: >= 2.44.0, < 3.4.5 Affected: >= 4.0.0-rc.1, < 4.7.2

Show details on NVD website

JSON

To clipboard

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}

EUVD-2026-263258

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:01

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:01:32.037251+00:00",
  "id": "EUVD-2026-263258"
}

FKIE_CVE-2025-67717

Vulnerability from fkie_nvd - Published: 2025-12-11 01:16 - Updated: 2026-10-14 20:10

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/zitadel/zitadel/commit/826039c6208fe71df57b3a94c982b5ac5b0af12c	Patch
	security-advisories@github.com	https://github.com/zitadel/zitadel/security/advisories/GHSA-f4cf-9rvr-2rcx	Patch, Vendor Advisory

Impacted products

Vendor	Product	Version
zitadel	zitadel	*
zitadel	zitadel	*
zitadel	zitadel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "zitadel",
          "vendor": "zitadel",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.80.0-v2.20.0.20251210"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.44.0, \u003c 3.4.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0-rc.1, \u003c 4.7.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
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            {
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              "versionEndIncluding": "2.71.19",
              "versionStartIncluding": "2.44.0",
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            },
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              "matchCriteriaId": "E455D450-9A02-47A4-AC6B-3A23B477A543",
              "versionEndExcluding": "3.4.5",
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          "negate": false,
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    }
  ],
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    },
    {
      "lang": "es",
      "value": "ZITADEL es una herramienta de infraestructura de identidad de c\u00f3digo abierto. Las versiones 2.44.0 a 3.4.4 y 4.0.0-rc.1 a 4.7.1 revelan el n\u00famero total de usuarios de la instancia a usuarios autenticados, independientemente de sus permisos espec\u00edficos. Aunque esto no filtra datos de usuarios individuales ni PII, la revelaci\u00f3n del recuento total de usuarios a trav\u00e9s del campo totalResult constituye una vulnerabilidad de revelaci\u00f3n de informaci\u00f3n que puede ser sensible en ciertos contextos. Este problema est\u00e1 solucionado en las versiones 3.4.5 y 4.7.2."
    }
  ],
  "id": "CVE-2025-67717",
  "lastModified": "2026-10-14T20:10:00.190",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-67717",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-11T18:39:06.363465Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-11T01:16:01.027",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/zitadel/zitadel/commit/826039c6208fe71df57b3a94c982b5ac5b0af12c"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-f4cf-9rvr-2rcx"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-497"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-F4CF-9RVR-2RCX

Vulnerability from github – Published: 2025-12-10 18:20 – Updated: 2026-02-02 16:34

Summary

Zitadel Discloses the Total Number of Instance Users

Details

Summary

Zitadel's User Service discloses the total number of instance users to unauthorized users.

Impact

The ZITADEL User Service exposes the total number of users within an instance to any authenticated user, regardless of their specific permissions. While this does not leak individual user data or PII, disclosing the total user count via the totalResult field constitutes an information disclosure vulnerability that may be sensitive in certain contexts.

Affected Versions

Systems running one of the following version are affected:

4.x: 4.0.0-rc.1 through 4.7.1
3.x: 3.0.0-rc.1 through 3.4.4
2.x: 2.44.0 through 2.71.19

Patches

The vulnerability has been addressed in the latest release. The patch resolves the issue and returns the totalResult value corresponding to the number of instance users for whom the querying user has read permission.

4.x: Upgrade to >= 4.7.2
3.x: Update to >= 3.4.5
2.x: Update to >= 3.4.5 (or checkout the workarounds section)

Workarounds

The recommended solution is to update Zitadel to a patched version.

If a version upgrade is not possible, you can enable the permissionCheckV2 feature on your instance.

Questions

If you have any questions or comments about this advisory, please email us at security@zitadel.com

Credits

This vulnerability was found by zentrust partners GmbH during a scheduled penetration test. Thank you to the analysts Martin Tschirsich, Joud Zakharia, Christopher Baumann. The full report will be made public after the complete review.

Severity

4.3 (Medium)


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

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.7.1"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/zitadel/zitadel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-rc.1"
            },
            {
              "fixed": "4.7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.4.4"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/zitadel/zitadel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.44.0"
            },
            {
              "fixed": "3.4.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/zitadel/zitadel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.80.0-v2.20.0.20251210121356-826039c6208f"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-67717"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-497"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-10T18:20:01Z",
    "nvd_published_at": "2025-12-11T01:16:01Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nZitadel\u0027s User Service discloses the total number of instance users to unauthorized users.\n\n### Impact\n\nThe ZITADEL User Service exposes the total number of users within an instance to any authenticated user, regardless of their specific permissions. While this does not leak individual user data or PII, disclosing the total user count via the `totalResult` field constitutes an information disclosure vulnerability that may be sensitive in certain contexts.\n\n### Affected Versions\n\nSystems running one of the following version are affected:\n\n- **4.x**: `4.0.0-rc.1` through `4.7.1`\n- **3.x**: `3.0.0-rc.1` through `3.4.4`\n- **2.x**: `2.44.0` through `2.71.19`\n\n### Patches\n\nThe vulnerability has been addressed in the latest release. The patch resolves the issue and returns the `totalResult` value corresponding to the number of instance users for whom the querying user has read permission.\n\n- 4.x: Upgrade to \u003e= [4.7.2](https://github.com/zitadel/zitadel/releases/tag/v4.7.2)\n- 3.x: Update to \u003e= [3.4.5](https://github.com/zitadel/zitadel/releases/tag/v3.4.5)\n- 2.x: Update to \u003e= [3.4.5](https://github.com/zitadel/zitadel/releases/tag/v3.4.5) (or checkout the workarounds section)\n\n### Workarounds\n\nThe recommended solution is to update Zitadel to a patched version.\n\nIf a version upgrade is not possible, you can enable the `permissionCheckV2` feature on your instance.\n\n### Questions\n\nIf you have any questions or comments about this advisory, please email us at [security@zitadel.com](mailto:security@zitadel.com)\n\n### Credits\n\nThis vulnerability was found by [zentrust partners GmbH](https://zentrust.partners) during a scheduled penetration test. Thank you to the analysts Martin Tschirsich, Joud Zakharia, Christopher Baumann.\nThe full report will be made public after the complete review.",
  "id": "GHSA-f4cf-9rvr-2rcx",
  "modified": "2026-02-02T16:34:14Z",
  "published": "2025-12-10T18:20:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-f4cf-9rvr-2rcx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67717"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zitadel/zitadel/commit/826039c6208fe71df57b3a94c982b5ac5b0af12c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zitadel/zitadel"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Zitadel Discloses the Total Number of Instance Users"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-67717 (GCVE-0-2025-67717)

EUVD-2026-263258

FKIE_CVE-2025-67717

GHSA-F4CF-9RVR-2RCX

Summary

Impact

Affected Versions

Patches

Workarounds

Questions

Credits

Tags

Sightings

Nomenclature

Related by attack behaviour