CVE-2026-40874

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Source
https://cve.org/CVERecord?id=CVE-2026-40874
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40874.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40874
Aliases
  • GHSA-jjxh-rm7p-hjc3
Published
2026-04-21T19:17:45Z
Modified
2026-10-28T02:30:37Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
mailcow: dockerized missing authorization on Forwarding Hosts delete action
Details

mailcow: dockerized is an open source groupware/email suite based on docker. In versions prior to 2026-03b, no administrator verification takes place when deleting Forwarding Hosts with /api/v1/delete/fwdhost. Any authenticated user can call this API. Checks are only applied for edit/add actions, but deletion can still significantly disrupt the mail service. Version 2026-03b fixes the vulnerability.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-284"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40874.json"
}
References

Affected packages

Git / github.com/mailcow/mailcow-dockerized

Affected ranges

Type
GIT
Repo
https://github.com/mailcow/mailcow-dockerized
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
281cf93db359554e8f4ca941351d5ba157325cc7
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2026-03b"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2026-03b"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

Other
2022-01
2022-01a
2022-03
2022-03a
2022-05
2022-05a
2022-05b
2022-05c
2022-05d
2022-06
2022-06a
2022-06b
2022-07
2022-07a
2022-08
2022-08a
2022-08b
2022-09
2022-09a
2022-10
2022-10a
2022-11
2022-11a
2022-11b
2022-12
2022-12a
2022-12b
2023-01
2023-01a
2023-02
2023-02a
2023-03
2023-04
2023-04a
2023-04b
2023-05
2023-05a
2023-07
2023-07a
2023-08
2023-09
2023-10
2023-10a
2023-11
2023-11a
2023-12
2023-12a
2024-01
2024-01a
2024-01b
2024-01c
2024-01d
2024-01e
2024-02
2024-04
2024-06
2024-06a
2024-06b
2024-06c
2024-07
2024-08
2024-08a
2024-11
2024-11a
2024-11b
2025-01
2025-01a
2025-02
2025-03
2025-03a
2025-03b
2025-05
2025-07
2025-09
2025-09a
2025-09b
2025-09c
2025-10
2025-10a
2025-12
2025-12a
2026-01
2026-03
2026-03a

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40874.json"