CVE-2026-27898: medium-severity vulnerability in dani-garcia vaultwarden
Vaultwarden: Unauthorized Access via Partial Update API on Another User’s Cipher
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.2%
Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, an authenticated regular user can specify another user’s cipher_id and call "PUT /api/ciphers/{id}/partial" Even though the standard retrieval API correctly denies access to that cipher, the partial update endpoint returns 200 OK and exposes cipherDetails (including name, notes, data, secureNote, etc.). This issue has been patched in version 1.35.4.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected products
dani-garcia · vaultwardenRelated CVEs — dani-garcia vaultwarden
In the same product, most dangerous first.
CVE-2025-24364HIGHvaultwarden allows RCE in the admin panelEPSS 1.0%CVE-2025-24365HIGHvaultwarden allows escalation of privilege via variable confusion in OrgHeaders traitEPSS 0.7%CVE-2026-47159MEDIUMVaultwarden: Authentication Flow Information Disclosure in SSO Discovery Allows Organization Enumeration and Pre-Validation Token ExposureEPSS 0.5%CVE-2026-26012MEDIUMvaultwarden has Full Cipher Enumeration Ignoring Organization Collection PermissionsEPSS 0.5%CVE-2026-47164HIGHVaultwarden: SSO Email Auto-Link Can Bind an Existing Local Account to an Attacker-Controlled IdP IdentityEPSS 0.4%CVE-2026-95814HIGHVaultwarden through 1.37.3 Authorization Bypass via Missing Status CheckEPSS 0.4%