CVE-2026-75025

Mattermost Desktop local network access from server-rendered content

CVSS 3.1 4.7 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-75025

Published

Mattermost Desktop App versions <=6.2 6.2.2.0 Fixed an issue where Mattermost Desktop did not sufficiently restrict server-rendered content from accessing local or private network resources. Thanks to game0v3r for contributing to this improvement under the Mattermost responsible disclosure policy. Mattermost Advisory ID: MMSA-2026-00698

Read the publisher's advisory

Affected versions, risk and source history

Exploitation and risk

Source status

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cve-program · CVE-2026-75025

Published

Mattermost Desktop local network access from server-rendered content

Source published: 16 Sep 2026 18:27:02 UTC
Source modified: 17 Sep 2026 18:35:23 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 4.7 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N