data/osv/GO-2026-5454.json

{
  "schema_version": "1.3.1",
  "id": "GO-2026-5454",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2026-4054",
    "GHSA-j76w-p754-g2w7"
  ],
  "summary": "Mattermost doesn't validate the response body of proxied images in github.com/mattermost/mattermost-server",
  "details": "Mattermost doesn't validate the response body of proxied images in github.com/mattermost/mattermost-server",
  "affected": [
    {
      "package": {
        "name": "github.com/mattermost/mattermost-server",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0.0.0-20250731163400-5b955468ea1e"
            },
            {
              "fixed": "0.0.0-20260414103857-b21ef302025e"
            },
            {
              "introduced": "11.4.0+incompatible"
            },
            {
              "fixed": "11.4.4+incompatible"
            },
            {
              "introduced": "11.5.0+incompatible"
            },
            {
              "fixed": "11.5.2+incompatible"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-j76w-p754-g2w7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4054"
    },
    {
      "type": "WEB",
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2026-5454",
    "review_status": "UNREVIEWED"
  }
}