How severe is CVE-2026-27801?

CVE-2026-27801 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2026-27801 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27801?

CVE-2026-27801 affects Dani-garcia Vaultwarden. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27801?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-27801 have an EU (EUVD) identifier?

Yes. CVE-2026-27801 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9501.

When was CVE-2026-27801 published?

CVE-2026-27801 was published on 2026-03-04 and last updated on 2026-06-17.

CVE-2026-27801

CVE-2026-27801 is a medium-severity vulnerability in Dani-garcia Vaultwarden with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v4: 6.0
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9501
Weakness: CWE-307
Affected product: Dani-garcia Vaultwarden
Published: 2026-03-04
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-27801?: 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.
How severe is CVE-2026-27801?: CVE-2026-27801 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2026-27801 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27801?: CVE-2026-27801 affects Dani-garcia Vaultwarden. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27801?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27801 have an EU (EUVD) identifier?: Yes. CVE-2026-27801 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9501.
When was CVE-2026-27801 published?: CVE-2026-27801 was published on 2026-03-04 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:dani-garcia:vaultwarden:*:*:*:*:*:*:*:*

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