Dashboard / CVE-2026-55587

CVE-2026-55587

HIGH
MEDIUM Priority: 0.01 BB Relevance: 66/100
Published: 2026-10-15 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: None

Description

AliasVault is a privacy-first password manager with built-in email aliasing. Prior to 0.29.4, the AliasVault browser extension passkey provider does not bind passkey requests to the actual webpage origin or verify that the requested relying-party identifier matches the current website. A malicious website can provide forged origin and relying-party values and, if a victim with a matching stored passkey approves the AliasVault passkey prompt, obtain a valid assertion for a different website. Exploitation requires the extension to be installed, unlocked, and configured as a passkey provider, requires a stored passkey for the impersonated site, and cannot occur silently because the victim must approve the prompt. The server, web application, and mobile applications are not affected. This issue is fixed in version 0.29.4.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
aliasvault aliasvault < 0.29.4

References & Advisories (3)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.15%
Raw Score 0.001480
Percentile 4.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00148
2026-10-28
0.00148

Intelligence Sources

mitre ref →
nvd ref →

External Links