CVE-2026-107586

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Source

https://cve.org/CVERecord?id=CVE-2026-107586

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107586.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-107586

Published

2026-10-08T15:11:24Z

Modified

2026-10-09T10:30:49Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator

Summary

Allocation of Resources Without Limits or Throttling in hMailServer

Details

Uncontrolled eviction in the browser session table of the REST API in Progressive Robot hMailServer 6.2.28 through 6.3.5 allows a remote authenticated user to end other users' sessions. The table of browser sessions, shared by every account, the server administrator and support sessions, dropped its least recently used session whenever it was full, whoever it belonged to, and placed no limit on how many sessions one account could hold. A user who repeatedly signs in with their own mailbox password can therefore keep the table full and sign out every webmail and administration session that is idle for more than a short time, for as long as they continue.

Database specific

{
    "cna_assigner": "GitLab",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107586.json"
}

References

Affected packages

Git / gitlab.com/hmailserver/hmailserver

Affected ranges

Type

GIT

Repo

https://gitlab.com/hmailserver/hmailserver

Events

Introduced

f088336c208817816c87c88c0ede7bb079c2a6ab

Fixed

e3c448aa66fc310b74d076884d54fae951296915

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "6.2.28"
        },
        {
            "fixed": "6.3.6"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

Other

build-inputs-1

v6.*

v6.2.28

v6.3.0

v6.3.1

v6.3.2

v6.3.3

v6.3.4

v6.3.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107586.json"