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CERT-FR Warns of Multiple Unspecified Vulnerabilities in Mattermost Desktop App and Server

1 fonte(s) · 1 atualização(ões) · publicado 03/11/2026 21:00 · coletado há 1 hora

CERT-FR issued advisory CERTFR-2026-AVI-1458 on 04 November 2026 detailing multiple vulnerabilities affecting Mattermost Desktop App and Mattermost Server products. The vendor did not disclose the specific nature of the security issues, only stating that a successful attacker could cause an unspecified security impact. The flaws are tracked across four Mattermost security bulletins (MMSA-2026-00800, MMSA-2026-00767, MMSA-2026-00770, MMSA-2026-00804) published on 02-03 November 2026. No CVE identifiers, exploitation status, or technical details are provided in the advisory.

Entenda a falha

A vulnerabilidade

CERT-FR advisory CERTFR-2026-AVI-1458 (4 November 2026) reports multiple vulnerabilities in Mattermost Desktop App and Mattermost Server. The vendor does not say what the flaws are, what an attacker needs or what they gain, only that an attacker could cause an unspecified security impact. No CVE IDs are listed. Affected: Desktop App 6.3.x before 6.3.1 and 6.x before 6.2.5; Server 11.10.x before 11.10.3, 11.11.x before 11.11.2 and 11.7.x before 11.7.12. Fixes are in the vendor bulletins MMSA-2026-00800, MMSA-2026-00767, MMSA-2026-00770 and MMSA-2026-00804.

Como foi descoberta

The articles do not say who found the flaws or how. They only show that Mattermost published four security bulletins on 2 and 3 November 2026 and that CERT-FR issued its advisory on 4 November 2026. The advisory gives no information on exploitation.

Explicação gerada por IA a partir da matéria e dos artigos, em 05/11/2026 16:23.

Detalhes técnicos

  • Affected: Mattermost Desktop App versions 6.3.x prior to 6.3.1 and versions 6.x prior to 6.2.5.
  • Affected: Mattermost Server versions 11.10.x prior to 11.10.3, 11.11.x prior to 11.11.2, and 11.7.x prior to 11.7.12.
  • Impact: unspecified security issue per the vendor.

Remediação

  • Apply vendor patches referenced in Mattermost security bulletins MMSA-2026-00800, MMSA-2026-00767, MMSA-2026-00770, and MMSA-2026-00804 (02-03 November 2026).

Linha do tempo

  1. cert.cyber.gouv.fr ↗ · pub. 03/11/2026 21:00 · coletado 05/11 16:00 primeiro registro

    CERT-FR Warns of Multiple Unspecified Vulnerabilities in Mattermost Desktop App and Server

    ler a análise desta fonte

    CERT-FR issued advisory CERTFR-2026-AVI-1458 on 04 November 2026 detailing multiple vulnerabilities affecting Mattermost Desktop App and Mattermost Server products. The vendor did not disclose the specific nature of the security issues, only stating that a successful attacker could cause an unspecified security impact. The flaws are tracked across four Mattermost security bulletins (MMSA-2026-00800, MMSA-2026-00767, MMSA-2026-00770, MMSA-2026-00804) published on 02-03 November 2026. No CVE identifiers, exploitation status, or technical details are provided in the advisory.

    Technical Details

    • Affected: Mattermost Desktop App versions 6.3.x prior to 6.3.1 and versions 6.x prior to 6.2.5.
    • Affected: Mattermost Server versions 11.10.x prior to 11.10.3, 11.11.x prior to 11.11.2, and 11.7.x prior to 11.7.12.
    • Impact: unspecified security issue per the vendor.

    Remediation

    • Apply vendor patches referenced in Mattermost security bulletins MMSA-2026-00800, MMSA-2026-00767, MMSA-2026-00770, and MMSA-2026-00804 (02-03 November 2026).