Vulnerability-Lookup

CVE-2026-47164 (GCVE-0-2026-47164)

Vulnerability from cvelistv5 – Published: 2026-07-15 15:03 – Updated: 2026-07-15 15:41

Title

Vaultwarden: SSO Email Auto-Link Can Bind an Existing Local Account to an Attacker-Controlled IdP Identity

Summary

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO login flow checked the IdP email_verified claim only for new-user creation and not when SSO_SIGNUPS_MATCH_EMAIL=true linked an IdP identity to an existing local account, allowing an attacker-controlled IdP identity asserting a victim email address to bind to and authenticate as that account. This issue is fixed in version 1.36.0.

Severity

7.7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-284 - Improper Access Control

Assigner

GitHub_M

References

4 references

URL	Tags
https://github.com/dani-garcia/vaultwarden/securi…	x_refsource_CONFIRM
https://github.com/dani-garcia/vaultwarden/pull/7163	x_refsource_MISC
https://github.com/dani-garcia/vaultwarden/commit…	x_refsource_MISC
https://github.com/dani-garcia/vaultwarden/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
dani-garcia	vaultwarden	Affected: < 1.36.0

Show details on NVD website

JSON

To clipboard

{
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          {
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                "id": "CVE-2026-47164",
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                    "Technical Impact": "total"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-07-15T15:41:01.104026Z",
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    "cna": {
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        }
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      "metrics": [
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      "source": {
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        "discovery": "UNKNOWN"
      },
      "title": "Vaultwarden: SSO Email Auto-Link Can Bind an Existing Local Account to an Attacker-Controlled IdP Identity"
    }
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      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "vaultwarden: Vaultwarden: Account takeover via SSO email auto-linking vulnerability",
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FKIE_CVE-2026-47164

Vulnerability from fkie_nvd - Published: 2026-07-15 16:16 - Updated: 2026-07-15 18:15

Severity

7.7 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934e0f7e9c0a87
	security-advisories@github.com	https://github.com/dani-garcia/vaultwarden/pull/7163
	security-advisories@github.com	https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0
	security-advisories@github.com	https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6x5c-84vm-5j56

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "vaultwarden",
          "vendor": "dani-garcia",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.36.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden\u0027s SSO login flow checked the IdP email_verified claim only for new-user creation and not when SSO_SIGNUPS_MATCH_EMAIL=true linked an IdP identity to an existing local account, allowing an attacker-controlled IdP identity asserting a victim email address to bind to and authenticate as that account. This issue is fixed in version 1.36.0."
    }
  ],
  "id": "CVE-2026-47164",
  "lastModified": "2026-07-15T18:15:13.373",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47164",
          "options": [
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              "exploitation": "none"
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            }
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          "role": "CISA Coordinator",
          "timestamp": "2026-07-15T15:41:01.104026Z",
          "version": "2.0.3"
        }
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    ]
  },
  "published": "2026-07-15T16:16:46.630",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934e0f7e9c0a87"
    },
    {
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      "url": "https://github.com/dani-garcia/vaultwarden/pull/7163"
    },
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      "source": "security-advisories@github.com",
      "url": "https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0"
    },
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      "url": "https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6x5c-84vm-5j56"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
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        }
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}

WID-SEC-W-2026-1600

Vulnerability from csaf_certbund - Published: 2026-05-19 22:00 - Updated: 2026-05-19 22:00

Summary

Vaultwarden: Mehrere Schwachstellen ermöglichen Erlangen von Benutzerrechten

Severity

Hoch

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Vaultwarden ist eine alternative Implementierung der Server API des Bitwarden Passwort-Managers.

Angriff: Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Vaultwarden ausnutzen, um Benutzerrechte zu erlangen und Informationen offenzulegen.

Betroffene Betriebssysteme: - Linux - Sonstiges - UNIX - Windows

CVE-2026-47158

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Open Source Vaultwarden <1.36.0 Open Source / Vaultwarden		<1.36.0

CVE-2026-47159

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Open Source Vaultwarden <1.36.0 Open Source / Vaultwarden		<1.36.0

CVE-2026-47160

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Open Source Vaultwarden <1.36.0 Open Source / Vaultwarden		<1.36.0

CVE-2026-47164

Affected products

Known affected 1 product

Product	Identifier	Version	Remediation
Open Source Vaultwarden <1.36.0 Open Source / Vaultwarden		<1.36.0

References

6 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://github.com/dani-garcia/vaultwarden/securi…	external
https://github.com/dani-garcia/vaultwarden/securi…	external
https://github.com/dani-garcia/vaultwarden/securi…	external
https://github.com/dani-garcia/vaultwarden/securi…	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Vaultwarden ist eine alternative Implementierung der Server API des Bitwarden Passwort-Managers.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Vaultwarden ausnutzen, um Benutzerrechte zu erlangen und Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- Sonstiges\n- UNIX\n- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1600 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1600.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1600 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1600"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-6x5c-84vm-5j56 vom 2026-05-19",
        "url": "https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6x5c-84vm-5j56"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-72vh-x5jq-m82g vom 2026-05-19",
        "url": "https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-72vh-x5jq-m82g"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-hxqh-ff5p-wfr3 vom 2026-05-19",
        "url": "https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-hxqh-ff5p-wfr3"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-pfp2-jhgq-6hg5 vom 2026-05-19",
        "url": "https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-pfp2-jhgq-6hg5"
      }
    ],
    "source_lang": "en-US",
    "title": "Vaultwarden: Mehrere Schwachstellen erm\u00f6glichen Erlangen von Benutzerrechten",
    "tracking": {
      "current_release_date": "2026-05-19T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-20T10:40:37.228+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1600",
      "initial_release_date": "2026-05-19T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-19T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c1.36.0",
                "product": {
                  "name": "Open Source Vaultwarden \u003c1.36.0",
                  "product_id": "T054381"
                }
              },
              {
                "category": "product_version",
                "name": "1.36.0",
                "product": {
                  "name": "Open Source Vaultwarden 1.36.0",
                  "product_id": "T054381-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:vaultwarden:vaultwarden:1.36.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Vaultwarden"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-47158",
      "product_status": {
        "known_affected": [
          "T054381"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-47158"
    },
    {
      "cve": "CVE-2026-47159",
      "product_status": {
        "known_affected": [
          "T054381"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-47159"
    },
    {
      "cve": "CVE-2026-47160",
      "product_status": {
        "known_affected": [
          "T054381"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-47160"
    },
    {
      "cve": "CVE-2026-47164",
      "product_status": {
        "known_affected": [
          "T054381"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-47164"
    }
  ]
}

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-2026-47164 (GCVE-0-2026-47164)

FKIE_CVE-2026-47164

WID-SEC-W-2026-1600

Tags

Sightings

Nomenclature