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CVE-2026-22880 Mobile SSO authentication flow allows credential theft via malicious server

🗓️ 21 May 2026 08:22:00Reported by MattermostType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

CVE-2026-22880: Mobile SSO flow allows credential theft via malicious server due to origin validation failure.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "2.0.37",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.0.4",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.1.3",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.3.2",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.11",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "version": "2.38.0",
        "status": "unaffected"
      },
      {
        "version": "11.5.0",
        "status": "unaffected"
      },
      {
        "version": "2.37.1.0",
        "status": "unaffected"
      },
      {
        "version": "11.4.1",
        "status": "unaffected"
      },
      {
        "version": "11.3.2",
        "status": "unaffected"
      },
      {
        "version": "11.2.4",
        "status": "unaffected"
      },
      {
        "version": "10.11.12",
        "status": "unaffected"
      }
    ]
  }
]

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