Auth bypass in Aliasvault
CVE-2026-2974
A vulnerability was identified in AliasVault App up to 0.25.3 on Android/iOS. This vulnerability affects unknown code of the file shared_prefs/aliasvault.xml of the component Backup Handler. The manipulation of the argument accessToken/refreshToken/metadata/key_derivation_params/auth_methods leads to exposure of backup file to an unauthorized control sphere. An attack has to be approached locally. The attack is considered to have high complexity. It is stated that the exploitability is difficult. The exploit is publicly available and might be used. Upgrading to version 0.26.0 is able to resolve this issue. The identifier of the patch is 873ecc03f92238e162f98a068ad56069a922b4f6/0bd662320174d8265dfe3b05a04bc13efc960532. It is recommended to upgrade the affected component. The creator of the software explains: "Because of AliasVault's zero-knowledge encryption design, the tokens stored in aliasvault.xml are API session tokens that cannot decrypt the vault on their own: the master password is required for that. So while this isn't a direct vault compromise risk, there's no reason to include them in backups either."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (2.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Aliasvault
- Aliasvault App — versions 0.25.0, 0.25.1, 0.25.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/aliasvault/aliasvault/issues/1497 (issue-tracking, Issue Tracking)
- github.com/aliasvault/aliasvault/pull/1499 (issue-tracking, Issue Tracking)
- github.com/aliasvault/aliasvault/issues/1497 (issue-tracking, exploit, Issue Tracking)
- github.com/aliasvault/aliasvault/commit/873ecc03f92238e162f98a068ad56069a922b4f6 (Patch, patch)
- github.com/aliasvault/aliasvault/releases/tag/0.26.0 (Release Notes, patch)
Frequently asked questions
- What is CVE-2026-2974?
- CVE-2026-2974 is a low-severity vulnerability in Aliasvault, classified under Improper Authorization. CVSS score: 2.5/10. Published 2026-02-23.
- How severe is CVE-2026-2974?
- Low severity. CVSS v3 base score is 2.5 out of 10.