{"id":"CVE-2026-119414","title":"Bitwarden Server before 2026.10.1 Authorization Bypass via POST /api/ciphers/create","summary":"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, w…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-863"],"vendor":"bitwarden","product":"server","affected":["server < 2026.10.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-30T16:37:32.248638Z"},"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T16:37:45.394Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119414","references":[{"url":"https://github.com/bitwarden/server/commit/9030c42bf7d8f9ac2ff9fee85c39588d5eb81499"},{"url":"https://github.com/bitwarden/server/pull/8482"},{"url":"https://github.com/bitwarden/server/blob/v2026.10.0/src/Infrastructure.EntityFramework/Vault/Repositories/CipherRepository.cs#L112"},{"url":"https://github.com/bitwarden/server/blob/v2026.10.0/src/Api/Vault/Controllers/CiphersController.cs#L355"},{"url":"https://github.com/bitwarden/server/releases/tag/v2026.10.1","label":"server v2026.10.1 Release Notes"},{"url":"https://abraxaslabs.tech/research/bitwarden-cipher-create-acl"},{"url":"https://github.com/bitwarden/server"},{"url":"https://www.vulncheck.com/advisories/bitwarden-server-before-2026.10.1-authorization-bypass-via-post-api-ciphers-create","label":"VulnCheck Advisory: Bitwarden Server before 2026.10.1 Authorization Bypass via POST /api/ciphers/create"}],"tags":["cve.org"],"epss":0.00361,"epssPercentile":0.30036,"ingestedAt":"2026-11-05T16:24:31.080Z","slug":"CVE-2026-119414","body":"## Overview\n\nBitwarden 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.\n\n## Affected\n\n- `server < 2026.10.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}