PatchTheCVECVE-2026-33420: Vaultwarden is a Bitwarden-compatible server written in Rust
CVE-2026-33420 is a medium-severity flaw (CVSS 5.3) affecting vaultwarden. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 grou
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 94%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2026-05-05 |
| Last modified | 2026-07-24 |
Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-33420?
vaultwarden: upgrade to 1.35.5. Exact commands for each OS are on this page.
Is CVE-2026-33420 being exploited?
CVE-2026-33420 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-33420 affect?
CVE-2026-33420 affects vaultwarden. Severity is medium (CVSS 5.3). 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
How urgent is CVE-2026-33420?
Priority 25/100. Remotely exploitable, no login, no user action
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