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EUVD-2026-38246

🗓️ 22 Jun 2026 15:30:45Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 4 Views

Mattermost versions fail admin auth on setDefaultInstance via /gitlab connect, enabling any user to overwrite global GitLab.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-5139
22 Jun 202613:34
attackerkb
Circl
CVE-2026-5139
22 Jun 202615:54
circl
CVE
CVE-2026-5139
22 Jun 202613:34
cve
Cvelist
CVE-2026-5139 GitLab Plugin Allows Non-Admin Users to Modify Default Instance Configuration
22 Jun 202613:34
cvelist
NVD
CVE-2026-5139
22 Jun 202614:17
nvd
Positive Technologies
PT-2026-51304
22 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-5139 GitLab Plugin Allows Non-Admin Users to Modify Default Instance Configuration
22 Jun 202613:34
vulnrichment
[
  {
    "enisaIdVendor": [
      {
        "id": "abe8bdba-ed21-323f-ad03-de3948e41c84",
        "vendor": {
          "name": "Mattermost"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "1918c863-f2bc-3ab0-a3ff-affcd0e10f13",
        "product": {
          "name": "Mattermost",
          "vendor": {
            "name": "Mattermost"
          }
        },
        "product_version": "10.11.0 ≤10.11.17"
      },
      {
        "id": "25572ef7-aa78-3b71-ad84-8d086f0eb58b",
        "product": {
          "name": "Mattermost",
          "vendor": {
            "name": "Mattermost"
          }
        },
        "product_version": "11.7.0 ≤11.7.0"
      },
      {
        "id": "7cc3dbfa-a09a-30fe-bfa3-bb590b20fa86",
        "product": {
          "name": "Mattermost",
          "vendor": {
            "name": "Mattermost"
          }
        },
        "product_version": "11.5.0 ≤11.5.5"
      },
      {
        "id": "c4aec668-4900-3ae3-a676-d56fc9d5bd9c",
        "product": {
          "name": "Mattermost",
          "vendor": {
            "name": "Mattermost"
          }
        },
        "product_version": "11.6.0 ≤11.6.2"
      }
    ]
  }
]

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