---
id: CVE-2026-94621
title: AliasVault is a privacy-first password manager with built-in email aliasing
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 …
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-367
  - CWE-918
vendor: aliasvault
product: aliasvault
affected:
  - aliasvault < 0.30.3
  - ghcr.io/aliasvault/aliasvault < 0.30.3
  - ghcr.io/aliasvault/api < 0.30.3
  - ghcr.io/lanedirt/aliasvault-api < 0.30.3
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:49.410'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94621'
references:
  - url: >-
      https://github.com/aliasvault/aliasvault/commit/7eb4fee71f4582cfc80b8daea421b99d6aa9f814
    label: security-advisories@github.com
  - url: >-
      https://github.com/aliasvault/aliasvault/commit/90ea7d6bb4c74ca169ee1dde3ca38b08bd0966ed
    label: security-advisories@github.com
  - url: 'https://github.com/aliasvault/aliasvault/pull/2311'
    label: security-advisories@github.com
  - url: 'https://github.com/aliasvault/aliasvault/releases/tag/0.30.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/aliasvault/aliasvault/security/advisories/GHSA-7hm6-fj4m-pf6f
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T19:25:46.439Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.