{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "26.07.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2c19ef04d85230634ac70cc68b8f418a0666afec"
            }
          ],
          "repo": "https://github.com/cisagov/malcolm",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7j32-cf27-cp6h"
  ],
  "database_specific": {
    "cna_assigner": "icscert",
    "cwe_ids": [
      "CWE-290",
      "CWE-441",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107336.json"
  },
  "details": "Malcolm's front nginx reverse proxy defines a \"Dashboards → Arkime shortcut\" location using a case-insensitive regex matcher but a case-sensitive rewrite. A request whose path segment is not exact-lowercase (for example /IDDASH2ARK/...) enters the location (the matcher fires) but evades the rewrite (no redirect is issued), so nginx falls through to the location's proxy_pass to the Arkime backend. That location is the one proxied location in the shipped config that does not include the per-location authentication file, so the request reaches Arkime unauthenticated. The same location also forwards a client-supplied X-Forwarded-User header un-overwritten, and Arkime is configured to trust X-Forwarded-User as the authenticated username — so an unauthenticated network caller can reach the Arkime backend while supplying a forged, auto-provisioned identity.",
  "id": "CVE-2026-107336",
  "modified": "2026-10-10T02:30:45.374572612Z",
  "published": "2026-10-08T17:20:46.517Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-280-01.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107336.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/cisagov/Malcolm/security/advisories/GHSA-7j32-cf27-cp6h"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107336"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Authentication Bypass by Spoofing in Malcolm"
}