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Vulnerabilities

Vulnerability · CVE-2026-33420

Vaultwarden is a Bitwarden-compatible server written in Rust.

Published May 5, 2026 · catalog updated Jul 24, 2026 · Vaultwarden is a Bitwarden-compatible

Check if you run it

No confirmed exploitation is on record for CVE-2026-33420. EPSS is 0.28%. Act only if a listed version of Vaultwarden is a Bitwarden-compatible is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Vaultwarden is a Bitwarden-compatible).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.28%
Remediation
Version ranges on file
Affected products
cpe dani-garcia/vaultwarden · stated vaultwarden

Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_collections_details endpoint (GET /api/organizations/{org_id}/collections/details) is missing the has_full_access() authorization check that exists on the sibling get_org_collections endpoint. This allows any Manager-role user with accessAll=False and no collection assignments to retrieve the names, UUIDs, user-to-collection mappings, and group-to-collection mappings for all collections in the organization. This issue has been fixed in version 1.35.5.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe dani-garcia/vaultwardenversion unspecified
  • stated vaultwarden<= 1.35.4

How to fix CVE-2026-33420

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33420. EPSS is 0.28%. Act only if a listed version of Vaultwarden is a Bitwarden-compatible is installed.

Which versions are affected?

Compare what you have installed with <= 1.35.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-862: Missing Authorization. EPSS 0.28%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 5, 2026 · NIST NVD

    Detected

    Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_collections_details endpoint (GET /api/organizations/{org_id}/collections/details) is missing the has_full_access() authorization check that exists on the sibling get_org_collections endpoint. This allows any Manager-role user with accessAll=False and no collection assignments to retrieve the n

  2. Jul 24, 2026 · NIST NVD

    Updated

    Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_collections_details endpoint (GET /api/organizations/{org_id}/collections/details) is missing the has_full_access() authorization check that exists on the sibling get_org_collections endpoint. This allows any Manager-role user with accessAll=False and no collection assignments to retrieve the n

Sources

  • CVE.orgVulnerability recordCVE-2026-33420

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33420

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-33420

    Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_collections_details endpoint (GET /api/organizations/{org_id}/collections/details) is missing the has_full_access() authorization check that exists on the sibling get_org_coll

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.