# CVE-2026-26012: vaultwarden has Full Cipher Enumeration Ignoring Organization Collection Permissions

> Regular organization members can retrieve all ciphers within an organization, bypassing collection-level access controls to read sensitive data.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Feb 2026
- **Updated:** 12 Feb 2026
- **Also known as:** GHSA-h265-g7rm-h337

## What is CVE-2026-26012?

CVE-2026-26012 is a medium-severity missing authorization vulnerability in dani-garcia vaultwarden, published on 11 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to 1.35.3, a regular organization member can retrieve all ciphers within an organization, regardless of collection permissions. The endpoint /ciphers/organization-details is accessible to any organization member and internally uses Cipher::find_by_org to retrieve all ciphers. These ciphers are returned with CipherSyncType::Organization without enforcing collection-level access control. This vulnerability is fixed in 1.35.3.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-26012?

It affects 1 product.


Products: Dani-Garcia Vaultwarden.

## How do I fix CVE-2026-26012?

No fix has been published for CVE-2026-26012 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-26012 being exploited?

There is no known exploitation of CVE-2026-26012 in the wild and no public exploit code.

Public exploit code:

- CVE-2026-26012 — Proof of Concept Vaultwarden — Full Cipher Enumeration Ignoring Organization Collection Permissions (github_poc): https://github.com/Dulieno/CVE-2026-26012

## Other vulnerabilities in dani-garcia vaultwarden

- [CVE-2024-55225](https://insights.sbomify.com/CVE-2024-55225/): Vaultwarden vulnerable to user impersonation (critical 9.8)
- [CVE-2024-55224](https://insights.sbomify.com/CVE-2024-55224/): Vaultwarden HTML injection vulnerability (critical 9.6)
- [CVE-2024-39924](https://insights.sbomify.com/CVE-2024-39924/): Privilege escalation in n/a (high 8.8)
- [CVE-2026-43912](https://insights.sbomify.com/CVE-2026-43912/): Vaultwarden: Cross-Org Group Binding Enables Unauthorized Read And Write Access Into Another Organization (high 8.7)
- [CVE-2026-27802](https://insights.sbomify.com/CVE-2026-27802/): Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-26012 and fix it if it is affected.

What it is: CVE-2026-26012 is a medium-severity missing authorization vulnerability in dani-garcia vaultwarden, published on 11 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-26012 in the wild and no public exploit code.

Affected product: dani-garcia vaultwarden. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-26012/ (Markdown: https://insights.sbomify.com/CVE-2026-26012/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-26012
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-26012
- OSV: https://osv.dev/vulnerability/CVE-2026-26012

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-26012/
Summaries are generated and may contain mistakes; the official description above is the record.