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Medium severity6.5NVD Advisory· Published Jul 13, 2026· Updated Jul 13, 2026

CVE-2026-10106

CVE-2026-10106

Description

Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to verify that the channel referenced in an action cookie matches the channel of the target post, which allows an authenticated user without access to a private channel to trigger interactive post actions on posts in that channel via a cookie obtained from any accessible channel.. Mattermost Advisory ID: MMSA-2026-00690

Affected products

2
  • Mattermost/Mattermost2 versions
    cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: >=10.11.0,<10.11.20
    • (no CPE)range: <=11.7.2, <=11.6.4, <=10.11.19

Patches

Vulnerability mechanics

References

1

News mentions

0

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