CVE-2026-43638

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Source
https://cve.org/CVERecord?id=CVE-2026-43638
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43638.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-43638
Published
2026-05-11T17:13:31Z
Modified
2026-10-21T02:30:18Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Bitwarden Server < 2026.4.1 Missing Authorization via Organization Cipher Import
Details

Bitwarden Server prior to v2026.4.1 contains a missing authorization vulnerability that allows any authenticated user to write ciphers into an arbitrary organization via POST /ciphers/import-organization by submitting an empty collections array, which causes the server-side permission check to be skipped.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-862"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43638.json"
}
References

Affected packages

Git / github.com/bitwarden/server

Affected ranges

Type
GIT
Repo
https://github.com/bitwarden/server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3371bb6144772fb4b6f78a88ba065eef975f19cc
Fixed
ebbf6dd0fa752114c09d73abb48ce32a50476758
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2026.4.1"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "ebbf6dd0fa752114c09d73abb48ce32a50476758"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v2026.4.1",
            "range":  [
                {
                    "fixed":  "3371bb6144772fb4b6f78a88ba065eef975f19cc"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.22.0
1.4.0
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.10.0
v1.11.0
v1.11.1
v1.12.0
v1.12.1
v1.13.0
v1.13.1
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.15.1
v1.16.0
v1.17.0
v1.17.1
v1.17.2
v1.18.0
v1.19.0
v1.2.0
v1.20.0
v1.21.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.30.0
v1.30.1
v1.30.2
v1.30.3
v1.30.4
v1.31.0
v1.31.1
v1.32.0
v1.33.0
v1.33.1
v1.34.0
v1.35.0
v1.35.1
v1.36.0
v1.36.1
v1.37.0
v1.37.1
v1.37.2
v1.38.0
v1.38.1
v1.38.2
v1.39.0
v1.4.1
v1.5.0
v1.5.1
v1.6.0
v1.7.0
v1.8.0
v1.8.1
v1.8.2
v1.9.0
v2024.*
v2024.1.2
v2024.10.1
v2024.2.3
v2024.5.0
v2024.8.0
v2024.8.1
v2025.*
v2025.10.1
v2025.7.1
v2025.8.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43638.json"