HOMEVULNERABILITIESCVE-2026-27801
MEDIUM

CVE-2026-27801

CWE-307Published: March 4, 2026· Updated: Mar 6, 2026

5.9
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.3th

Official Description

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Vaultwarden versions 1.34.3 and prior are susceptible to a 2FA bypass when performing protected actions. An attacker who gains authenticated access to a user’s account can exploit this bypass to perform protected actions such as accessing the user’s API key or deleting the user’s vault and organisations the user is an admin/owner of . This issue has been patched in version 1.35.0.

NVD Source

Technical Analysis

CVE-2026-27801 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.9.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

Affected Vendors & Products

dani-garcia1 product
vaultwarden
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-v6pg-v89r-w8wr
ADVISORYhttps://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-v6pg-v89r-w8wr

All References (2)

→
https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-v6pg-v89r-w8wrExploit · Mitigation · Vendor Advisory
→
https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-v6pg-v89r-w8wrExploit · Mitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2026-27801
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-307
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 4, 2026

Related CVEs (CWE-307)

CVE-2026-6853
9.8
CVE-2026-8760
9.8
CVE-2026-25114
9.8
CVE-2026-25113
9.8
CVE-2026-20792
9.8
CVE-2025-69246
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-27801 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2026-27801·NVD