FKIE_CVE-2026-94621

Vulnerability from fkie_nvd - Published: 2026-10-15 19:17 - Updated: 2026-10-16 20:04
Severity
6.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Summary
AliasVault is a privacy-first password manager with built-in email aliasing. Prior to 0.30.3, the AliasVault server API favicon extractor validates a user-supplied hostname with a first DNS lookup but allows the HTTP client to perform a second DNS lookup when connecting. An authenticated low-privileged user operating an attacker-controlled authoritative DNS server can return a public address during validation and a private address during connection, causing a publicly reachable self-hosted server to issue HTTP or HTTPS requests to internal hosts. A valid image response is returned in Base64 form, while other responses can expose limited timing and error information for internal-network reconnaissance. Exploitation requires a publicly reachable self-hosted instance with public registration enabled, an authenticated AliasVault account, an attacker-controlled authoritative DNS server, and a resolver that permits rebinding; default checks limit requests to ports 80 and 443. The browser extensions, web application, and mobile applications are not affected. This issue is fixed in version 0.30.3.
References
security-advisories@github.comhttps://github.com/aliasvault/aliasvault/commit/7eb4fee71f4582cfc80b8daea421b99d6aa9f814
security-advisories@github.comhttps://github.com/aliasvault/aliasvault/commit/90ea7d6bb4c74ca169ee1dde3ca38b08bd0966ed
security-advisories@github.comhttps://github.com/aliasvault/aliasvault/pull/2311
security-advisories@github.comhttps://github.com/aliasvault/aliasvault/releases/tag/0.30.3
security-advisories@github.comhttps://github.com/aliasvault/aliasvault/security/advisories/GHSA-7hm6-fj4m-pf6f
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "aliasvault",
          "vendor": "aliasvault",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.30.3"
            }
          ]
        },
        {
          "product": "ghcr.io/aliasvault/aliasvault",
          "vendor": "aliasvault",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.30.3"
            }
          ]
        },
        {
          "product": "ghcr.io/aliasvault/api",
          "vendor": "aliasvault",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.30.3"
            }
          ]
        },
        {
          "product": "ghcr.io/lanedirt/aliasvault-api",
          "vendor": "aliasvault",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.30.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "AliasVault is a privacy-first password manager with built-in email aliasing. Prior to 0.30.3, the AliasVault server API favicon extractor validates a user-supplied hostname with a first DNS lookup but allows the HTTP client to perform a second DNS lookup when connecting. An authenticated low-privileged user operating an attacker-controlled authoritative DNS server can return a public address during validation and a private address during connection, causing a publicly reachable self-hosted server to issue HTTP or HTTPS requests to internal hosts. A valid image response is returned in Base64 form, while other responses can expose limited timing and error information for internal-network reconnaissance. Exploitation requires a publicly reachable self-hosted instance with public registration enabled, an authenticated AliasVault account, an attacker-controlled authoritative DNS server, and a resolver that permits rebinding; default checks limit requests to ports 80 and 443. The browser extensions, web application, and mobile applications are not affected. This issue is fixed in version 0.30.3."
    }
  ],
  "id": "CVE-2026-94621",
  "lastModified": "2026-10-16T20:04:29.760",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-94621",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-15T20:24:54.558375Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-15T19:17:49.410",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aliasvault/aliasvault/commit/7eb4fee71f4582cfc80b8daea421b99d6aa9f814"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aliasvault/aliasvault/commit/90ea7d6bb4c74ca169ee1dde3ca38b08bd0966ed"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aliasvault/aliasvault/pull/2311"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aliasvault/aliasvault/releases/tag/0.30.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aliasvault/aliasvault/security/advisories/GHSA-7hm6-fj4m-pf6f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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