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    CVE-2026-27803

    Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, when a Manager has manage=false for a given collection, they can still perform several management operations as long as they have access to the collection. This issue has been patched in version 1.35.4.

    Published:Mar 4, 2026
    Last Modified:Apr 16, 2026
    EPS:Mar 4, 2026
    EPSS Score:0.00052
    CVSS Score:8.3

    Affected Products

    Vendor
    Dani-garcia
    Product
    Vaultwarden

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-104 Cross Zone Scripting
    CAPEC-122 Privilege Abuse
    CAPEC-127 Directory Indexing
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-17 Using Malicious Files
    CAPEC-233 Privilege Escalation
    CAPEC-39 Manipulating Opaque Client-based Data Tokens
    CAPEC-402 Bypassing ATA Password Security
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-5 Blue Boxing
    CAPEC-51 Poison Web Service Registry
    CAPEC-58 Restful Privilege Elevation
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-647 Collect Data from Registries
    CAPEC-668 Key Negotiation of Bluetooth Attack (KNOB)
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-77 Manipulating User-Controlled Variables
    CAPEC-87 Forceful Browsing

    Related CVEs

    CVE-2026-47160 (CVSS 5.8) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's /icons/{domain}/i…
    CVE-2026-47164 (CVSS 7.7) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO login flow ch…
    CVE-2026-47159 (CVSS 6.9) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO discovery and…
    CVE-2026-47158 (CVSS 8.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO authorization…
    CVE-2026-43914 (CVSS 7.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.4, there is a security vulnerabili…
    CVE-2026-43913 (CVSS 8.1) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, Vaultwarden allows an unconfirm…
    CVE-2026-43912 (CVSS 8.7) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, Vaultwarden does not enforce th…
    CVE-2026-43911 (CVSS 6.8) — Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, refresh tokens are not invalida…
    CVE-2026-33420 (CVSS 5.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_colle…
    CVE-2026-31835 (CVSS 5.3) — Vaultwarden is a Bitwarden-compatible server written in Rust. In versions 1.35.4 and earlier, the WebAuthn aut…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High