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EUVD-2026-12439

🗓️ 16 Mar 2026 15:30:47Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 2 Views

Mattermost 10.11.x to 10.11.10 fails to validate account auth switch, enabling attackers to change passwords by claiming a different provider.

Related
Affected
Refs
[
  {
    "enisaIdVendor": [
      {
        "id": "597e5ae6-7f40-39e7-82d5-5ca4078a2647",
        "vendor": {
          "name": "Mattermost"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "597e5ae6-7f40-39e7-82d5-5ca4078a2647",
        "product": {
          "name": "Mattermost"
        },
        "product_version": ""
      },
      {
        "id": "c489f000-0b09-3cce-adf9-e3779814e9a5",
        "product": {
          "name": "Mattermost"
        },
        "product_version": "10.11.0 ≤10.11.10"
      }
    ]
  }
]

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16 Mar 2026 15:30Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.13.1
EPSS0.00067
SSVC
2