Mattermost security advisory (AV25-364) – Canadian Centre for Cyber Security

Mattermost security advisory (AV25-364) – Canadian Centre for Cyber Security

Mattermost released security advisories on May 21, 2025, addressing critical vulnerabilities across multiple server versions. Users are urged to review the advisories and apply necessary updates to protect their systems. #Mattermost #SecurityVulnerabilities

Keypoints

  • Mattermost issued security advisories on May 21, 2025.
  • The updates address critical vulnerabilities in several Mattermost Server versions.
  • Specific versions affected include 9.11.15, 10.5.5, 10.6.5, 10.7.2, and 10.8.0 or earlier.
  • Users and administrators are encouraged to review the advisories and apply updates promptly.
  • The cybersecurity agency recommends reviewing the provided web link for detailed guidance.

Read More: https://www.cyber.gc.ca/en/alerts-advisories/mattermost-security-advisory-av25-364