VYPR
← All advisories
Low severity3.8OSV Advisory· Published Jul 13, 2026· Updated Jul 13, 2026

CVE-2026-9820

CVE-2026-9820

Description

Mattermost versions 11.7.x <= 11.7.2, 10.11.x <= 10.11.19 fail to sanitize team objects returned by the scheme teams endpoint, which allows a user with the User Manager role to obtain invite links for private teams and use them to join or share access to those teams via the scheme teams API endpoint.. Mattermost Advisory ID: MMSA-2026-00671

Affected products

3
  • Mattermost/Mattermost3 versions
    cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: >=10.11.0,<10.11.20
    • (no CPE)range: <=11.7.2, <=10.11.19
    • (no CPE)range: v10.11.19, v10.11.19-rc1, v11.7.2, …

Patches

Vulnerability mechanics

References

1

News mentions

0

No linked articles in our index yet.