# CVE-2026-119414: Bitwarden Server before 2026.10.1 Authorization Bypass via POST /api/ciphers/create

> CVE-2026-119414: Bitwarden Server before 2026.10.1 Authorization Bypass via POST /api/ciphers/create. CVSS 4.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-119414
Last updated: 2026-10-30T19:14:38Z

- Published: 2026-10-30 11:30 UTC · Updated: 2026-10-30 19:14 UTC · Assigner: VulnCheck
- CVSS: 4.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- EPSS: 0.36%, 30th percentile (scored 2026-11-03)
- CISA KEV: no
- CWE: CWE-863

## Description

Bitwarden Server before 2026.10.1 on Entity Framework backends contains an authorization bypass vulnerability that allows organization members to add ciphers to collections they cannot edit. Attackers can call POST /api/ciphers/create, where a nulled UserId is treated as administrative, to inject vault items synced to read-only or inaccessible collections' members.

## Affected vendors and products

- bitwarden: server

## Tracked companies

- [Bitwarden](https://rewindex.com/company/bitwarden.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-119414)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-119414)
- [https://abraxaslabs.tech/research/bitwarden-cipher-create-acl](https://abraxaslabs.tech/research/bitwarden-cipher-create-acl)
- [https://github.com/bitwarden/server](https://github.com/bitwarden/server)
- [https://github.com/bitwarden/server/blob/v2026.10.0/src/Api/Vault/Controllers/CiphersController.cs\#L355](https://github.com/bitwarden/server/blob/v2026.10.0/src/Api/Vault/Controllers/CiphersController.cs#L355)
- [https://github.com/bitwarden/server/blob/v2026.10.0/src/Infrastructure.EntityFramework/Vault/Repositories/CipherRepository.cs\#L112](https://github.com/bitwarden/server/blob/v2026.10.0/src/Infrastructure.EntityFramework/Vault/Repositories/CipherRepository.cs#L112)
- [https://github.com/bitwarden/server/commit/9030c42bf7d8f9ac2ff9fee85c39588d5eb81499](https://github.com/bitwarden/server/commit/9030c42bf7d8f9ac2ff9fee85c39588d5eb81499)
- [https://github.com/bitwarden/server/pull/8482](https://github.com/bitwarden/server/pull/8482)
- [https://github.com/bitwarden/server/releases/tag/v2026.10.1](https://github.com/bitwarden/server/releases/tag/v2026.10.1)
- [https://www.vulncheck.com/advisories/bitwarden-server-before-2026.10.1-authorization-bypass-via-post-api-ciphers-create](https://www.vulncheck.com/advisories/bitwarden-server-before-2026.10.1-authorization-bypass-via-post-api-ciphers-create)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-119414 · Markdown: https://rewindex.com/cve/CVE-2026-119414.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-119414 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T15:24:54.767Z