CVE-2026-126612

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-126612

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126612.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-126612

Published

2026-11-11T08:30:52Z

Modified

2026-11-14T02:30:21Z

Severity

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

Summary

Improper Link Resolution Before File Access ('Link Following') in hMailServer

Details

Improper link resolution in the Windows installer of Progressive Robot hMailServer 6.0.0 through 6.3.7 allows a local authenticated user to run code as the mail server's service account or as an administrator when the path to the program folder passes through a junction, a symbolic link or a mount point that the user controls or that every user may change, such as a junction made at the root of a drive, which takes the root's permissions, or through a folder that every user may rename. Setup installed the programs through any such link without first checking who controls it, or whether a folder above the program folder may be renamed, and the service is registered to run the programs by that path, so the programs are installed where a link another account controls leads, or that account can later make the path lead to a folder it controls; the service, which runs as LocalSystem or as its virtual account, and the programs administrators run from Bin are then started from there. 6.3.7's fix for CVE-2026-107571 does not cover this: its hardening of the program folder, Bin and ControlPanel does not change a folder reached through a link that the administrators do not alone control, and setup does not refuse such a path: it installs through the link and at most reports afterwards that the folders could not be hardened. The default installation under Program Files is not affected.

Database specific

{
    "cna_assigner": "GitLab",
    "cwe_ids": [
        "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126612.json"
}

References

Affected packages

Git / gitlab.com/hmailserver/hmailserver

Affected ranges

Type

GIT

Repo

https://gitlab.com/hmailserver/hmailserver

Events

Introduced

e4b7163189ac6ce365bb954cf3e264e2e3105a18

Last Affected

31d656c0ce85650202b2c0f70bdd1cffa7243e34

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "6.0.0"
                },
                {
                    "last_affected": "6.3.7"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "6.0.0"
                },
                {
                    "last_affected": "6.3.7"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

Other

build-inputs-1

build-inputs-2

v6.*

v6.0.0

v6.0.0-B3

v6.0.0-B4

v6.1.0

v6.2.0

v6.2.1

v6.2.10

v6.2.11

v6.2.12

v6.2.13

v6.2.14

v6.2.15

v6.2.16

v6.2.17

v6.2.18

v6.2.19

v6.2.2

v6.2.20

v6.2.21

v6.2.22-pre1

v6.2.22-pre2

v6.2.22-pre3

v6.2.22-pre4

v6.2.22-pre5

v6.2.22-pre6

v6.2.23-alpha1

v6.2.23-alpha2

v6.2.24

v6.2.25

v6.2.26

v6.2.27

v6.2.28

v6.2.3

v6.2.4

v6.2.5

v6.2.6

v6.2.7

v6.2.8

v6.2.9

v6.3.0

v6.3.1

v6.3.2

v6.3.3

v6.3.4

v6.3.5

v6.3.6

v6.3.7

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126612.json"