CERTFR-2026-AVI-0610
Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans les produits Mattermost. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Mattermost Mattermost Server Mattermost Server versions 10.11.x antérieures à 10.11.17
Mattermost Mattermost Server Mattermost Server versions 11.5.x antérieures à 11.5.5
Mattermost Mattermost Desktop App Mattermost Desktop App versions antérieures à 6.2
Mattermost Mattermost Server Mattermost Server versions 11.6.x antérieures à 11.6.2
Mattermost Mattermost Desktop App Mattermost Desktop App versions 5.13.x antérieures 5.13.6
References

Show details on source website

To clipboard 

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Mattermost Server versions 10.11.x ant\u00e9rieures \u00e0 10.11.17",
      "product": {
        "name": "Mattermost Server",
        "vendor": {
          "name": "Mattermost",
          "scada": false
        }
      }
    },
    {
      "description": "Mattermost Server versions 11.5.x ant\u00e9rieures \u00e0 11.5.5",
      "product": {
        "name": "Mattermost Server",
        "vendor": {
          "name": "Mattermost",
          "scada": false
        }
      }
    },
    {
      "description": "Mattermost Desktop App versions ant\u00e9rieures \u00e0 6.2",
      "product": {
        "name": "Mattermost Desktop App",
        "vendor": {
          "name": "Mattermost",
          "scada": false
        }
      }
    },
    {
      "description": "Mattermost Server versions 11.6.x ant\u00e9rieures \u00e0 11.6.2",
      "product": {
        "name": "Mattermost Server",
        "vendor": {
          "name": "Mattermost",
          "scada": false
        }
      }
    },
    {
      "description": "Mattermost Desktop App versions 5.13.x ant\u00e9rieures 5.13.6",
      "product": {
        "name": "Mattermost Desktop App",
        "vendor": {
          "name": "Mattermost",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-6689",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-6689"
    },
    {
      "name": "CVE-2026-6739",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-6739"
    },
    {
      "name": "CVE-2026-7184",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-7184"
    },
    {
      "name": "CVE-2026-7387",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-7387"
    },
    {
      "name": "CVE-2026-3433",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-3433"
    },
    {
      "name": "CVE-2026-6046",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-6046"
    },
    {
      "name": "CVE-2026-6961",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-6961"
    }
  ],
  "initial_release_date": "2026-05-19T00:00:00",
  "last_revision_date": "2026-08-14T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0610",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-05-19T00:00:00.000000"
    },
    {
      "description": "Ajout d\u0027identifiants CVE et modification des risques en cons\u00e9quence.",
      "revision_date": "2026-08-14T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    },
    {
      "description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mattermost. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mattermost",
  "vendor_advisories": [
    {
      "published_at": "2026-05-18",
      "title": "Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00662",
      "url": "https://mattermost.com/security-updates/"
    },
    {
      "published_at": "2026-05-15",
      "title": "Bulletin de s\u00e9curit\u00e9 Mattermost MMSA-2026-00652",
      "url": "https://mattermost.com/security-updates/"
    }
  ]
}


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