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HIGH · 8.3

CVE-2026-27802

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, there is a privilege escalation vulnerability via bulk permission upd...

Vulnerability Description

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, there is a privilege escalation vulnerability via bulk permission update to unauthorized collections by Manager. This issue has been patched in version 1.35.4.

CVSS Score

8.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW

Affected Products

VendorProductVersions
Dani-GarciaVaultwarden< 1.35.4

Related Weaknesses (CWE)

CWE-269CWE-863

References

FAQ

What is CVE-2026-27802?

CVE-2026-27802 is a vulnerability with a CVSS score of 8.3 (HIGH). Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, there is a privilege escalation vulnerability via bulk permission upd...

How severe is CVE-2026-27802?

CVE-2026-27802 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-27802?

Check the references section above for vendor advisories and patch information. Affected products include: Dani-Garcia Vaultwarden.