CVE-2026-27803HIGH 8.3EPSS p20.2%

CVE-2026-27803CVE-2026-27803

Description

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.

Scoring

CVSS 3.18.3 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
EPSS0.29% probability of exploitation · percentile 20.2% · 2026-06-18T12:00:27Z
Published2026-03-04
Last modified2026-03-06

Underlying weaknesses· 3

CWE-269CWE-285CWE-863

References

  1. https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-h4hq-rgvh-wh27

3

TypeTargetConfidenceTier
WeaknessImproper Privilege Managementcwe-2690%live
WeaknessImproper Authorizationcwe-2850%live
WeaknessIncorrect Authorizationcwe-8630%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.