Vulnerability-Lookup

CVE-2024-27928 (GCVE-0-2024-27928)

Vulnerability from cvelistv5 – Published: 2026-06-17 22:12 – Updated: 2026-06-18 12:57

Title

Vantage6: 2FA can be circumvented with hacked email access

Summary

vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, if an attacker hacks into a vantage6 user's email account, they can 1) reset the password via email and then 2) reset the 2FA token via email. This way they reduce 2FA to 1FA (email access). Note that most email providers require 2FA to access email, so this issue is not very likely to cause issues. Version 5.0.0 fixes the issue. No known workarounds are available.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-308 - Use of Single-factor Authentication

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/vantage6/vantage6/security/adv…	x_refsource_CONFIRM
https://github.com/vantage6/vantage6/issues/1932	x_refsource_MISC
https://github.com/vantage6/vantage6/blob/main/do…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
vantage6	vantage6	Affected: < 5.0.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-27928",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-18T12:57:27.690129Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-18T12:57:34.777Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "vantage6",
          "vendor": "vantage6",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, if an attacker hacks into a vantage6 user\u0027s email account, they can 1) reset the password via email and then 2) reset the 2FA token via email. This way they reduce 2FA to 1FA (email access). Note that most email providers require 2FA to access email, so this issue is not very likely to cause issues. Version 5.0.0 fixes the issue. No known workarounds are available."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "HIGH",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-308",
              "description": "CWE-308: Use of Single-factor Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-17T22:12:36.791Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2"
        },
        {
          "name": "https://github.com/vantage6/vantage6/issues/1932",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vantage6/vantage6/issues/1932"
        },
        {
          "name": "https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500"
        }
      ],
      "source": {
        "advisory": "GHSA-4c5c-2vc3-x5w2",
        "discovery": "UNKNOWN"
      },
      "title": "Vantage6: 2FA can be circumvented with hacked email access"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-27928",
    "datePublished": "2026-06-17T22:12:36.791Z",
    "dateReserved": "2024-02-28T15:14:14.215Z",
    "dateUpdated": "2026-06-18T12:57:34.777Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-27928",
      "date": "2026-06-26",
      "epss": "0.00278",
      "percentile": "0.19554"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-27928\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-18T12:57:27.690129Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-18T12:57:31.391Z\"}}], \"cna\": {\"title\": \"Vantage6: 2FA can be circumvented with hacked email access\", \"source\": {\"advisory\": \"GHSA-4c5c-2vc3-x5w2\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"HIGH\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"vantage6\", \"product\": \"vantage6\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 5.0.0\"}]}], \"references\": [{\"url\": \"https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2\", \"name\": \"https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/vantage6/vantage6/issues/1932\", \"name\": \"https://github.com/vantage6/vantage6/issues/1932\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500\", \"name\": \"https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, if an attacker hacks into a vantage6 user\u0027s email account, they can 1) reset the password via email and then 2) reset the 2FA token via email. This way they reduce 2FA to 1FA (email access). Note that most email providers require 2FA to access email, so this issue is not very likely to cause issues. Version 5.0.0 fixes the issue. No known workarounds are available.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-308\", \"description\": \"CWE-308: Use of Single-factor Authentication\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-06-17T22:12:36.791Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-27928\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-18T12:57:34.777Z\", \"dateReserved\": \"2024-02-28T15:14:14.215Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-06-17T22:12:36.791Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2024-27928

Vulnerability from fkie_nvd - Published: 2026-06-17 23:17 - Updated: 2026-06-23 15:44

Severity

5.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500
	security-advisories@github.com	https://github.com/vantage6/vantage6/issues/1932
	security-advisories@github.com	https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "vantage6",
          "vendor": "vantage6",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.0.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, if an attacker hacks into a vantage6 user\u0027s email account, they can 1) reset the password via email and then 2) reset the 2FA token via email. This way they reduce 2FA to 1FA (email access). Note that most email providers require 2FA to access email, so this issue is not very likely to cause issues. Version 5.0.0 fixes the issue. No known workarounds are available."
    }
  ],
  "id": "CVE-2024-27928",
  "lastModified": "2026-06-23T15:44:39.343",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.9,
          "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": "HIGH",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-27928",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-18T12:57:27.690129Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-17T23:17:02.790",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/vantage6/vantage6/issues/1932"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-308"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-4C5C-2VC3-X5W2

Vulnerability from github – Published: 2026-06-05 15:24 – Updated: 2026-06-05 15:24

Summary

Vantage6: 2FA can be circumvented with hacked email access

Details

Impact

If an attacker hacks into a vantage6 user's email account, they can 1) reset the password via email and then 2) reset the 2FA token via email. This way they reduce 2FA to 1FA (email access).

Note that most email providers require 2FA to access email, so this issue is not very likely to cause issues.

Proposed solution

Many web apps do not provide functionality to reset 2FA token (probably for this reason), but provide recovery codes as well. It would be better to provide these recovery codes to the user 1 time and then delete the option to reset it.

An alternative may be to only let server administrators reset 2FA token. However, this has as disadvantage that a hacked email account may send messages to the server admin to reset them, which they may fall for.

Patches

Workarounds

Severity

5.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "vantage6"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-27928"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-308"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-05T15:24:35Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nIf an attacker hacks into a vantage6 user\u0027s email account, they can 1) reset the password via email and then 2) reset the 2FA token via email. This way they reduce 2FA to 1FA (email access). \n\nNote that most email providers require 2FA to access email, so this issue is not very likely to cause issues.\n\n### Proposed solution\n\nMany web apps do not provide functionality to reset 2FA token (probably for this reason), but provide recovery codes as well. It would be better to provide these recovery codes to the user 1 time and then delete the option to reset it.\n\nAn alternative may be to only let server administrators reset 2FA token. However, this has as disadvantage that a hacked email account may send messages to the server admin to reset them, which they may fall for.\n\n### Patches\nNo\n\n### Workarounds\nNo",
  "id": "GHSA-4c5c-2vc3-x5w2",
  "modified": "2026-06-05T15:24:35Z",
  "published": "2026-06-05T15:24:35Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vantage6/vantage6/issues/1932"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vantage6/vantage6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Vantage6: 2FA can be circumvented with hacked email access"
}

GSD-2024-27928

Vulnerability from gsd - Updated: 2024-02-29 06:03

Details

** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.

Aliases

CVE-2024-27928

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-27928"
      ],
      "id": "GSD-2024-27928",
      "modified": "2024-02-29T06:03:30.290022Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2024-27928",
        "STATE": "RESERVED"
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
          }
        ]
      }
    }
  }
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2024-27928 (GCVE-0-2024-27928)

FKIE_CVE-2024-27928

GHSA-4C5C-2VC3-X5W2

Impact

Proposed solution

Patches

Workarounds

GSD-2024-27928

Tags

Sightings

Nomenclature