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Suggestion detail

Untriaged
Permalink CVE-2026-9820
3.8 LOW
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): High (H)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): Low (L)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): High (H)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
created 2 months, 1 week ago Activity log
  • Created suggestion
Mattermost schemes teams endpoint exposes private team invite IDs

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

References

Affected products

Mattermost
  • =<10.11.19
  • ==11.7.3
  • ==11.8.0
  • =<11.7.2
  • ==10.11.20

Matching in nixpkgs

pkgs.mattermost

Open source platform for secure collaboration across the entire software development lifecycle

  • nixos-unstable -
  • nixos-26.05 -

pkgs.mattermostLatest

Open source platform for secure collaboration across the entire software development lifecycle

  • nixos-unstable -
  • nixos-26.05 -

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