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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2026-39039

In BharatMLStack up to and including v1.3.0, Trufflebox UI stores the JWT authentication token, full user object, and session ID in the browser's localStorage, which is fully accessible to any JavaScript running on the page.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-39039
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 18:27 UTC · Revision 1

Source evidence

CVE-2026-39039

core-osv · Original source

Published 15 Sept 2026, 00:00 UTC

In BharatMLStack up to and including v1.3.0, Trufflebox UI stores the JWT authentication token, full user object, and session ID in the browser's localStorage, which is fully accessible to any JavaScript running on the page.

osv:CVE-2026-39039
Complete source record
{
  "id": "c8e074e9dadeef039fd8ff672a6d38a2eb856b1d5c0f3c7be010a725d6cca30d",
  "url": "https://osv.dev/vulnerability/CVE-2026-39039",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-39039",
    "summary": "In BharatMLStack up to and including v1.3.0, Trufflebox UI stores the JWT authentication token, full user object, and session ID in the browser's localStorage, which is fully accessible to any JavaScript running on the page.",
    "evidence": "osv:CVE-2026-39039",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-39039",
      "aliases": [
        "CVE-2026-39039"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/meesho/bharatmlstack",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "3539dcc6f17daca4605ff8dd385a846631313952"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.3.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "trufflebox-ui/v1.3.0",
            "skye/v1.0.0",
            "online-feature-store/v1.2.0",
            "numerix/v1.0.0",
            "inferflow/v1.0.0",
            "horizon/v1.3.0",
            "numerix/v1.0.0-beta-5db162",
            "trufflebox-ui/v1.3.0-beta-5db162",
            "online-feature-store/v1.2.0-beta-5db162",
            "inferflow/v1.0.0-beta-5db162",
            "horizon/v1.3.0-beta-5db162",
            "skye/v1.0.0-beta-bf1943",
            "skye/v0.1.0-alpha-db0e8c",
            "flashring/v0.0.2-aditya",
            "trufflebox-ui/v1.2.0-beta-90a180",
            "online-feature-store/v1.1.0-beta-90a180",
            "numerix/v1.0.0-beta-90a180",
            "inferflow/v1.0.0-beta-90a180",
            "inferflow/v1.0.0-alpha-9ef35e",
            "horizon/v1.2.0-beta-90a180",
            "trufflebox-ui/v1.2.0",
            "horizon/v1.2.0",
            "trufflebox-ui/v1.1.0-beta-a48087",
            "horizon/v1.1.0-beta-a48087",
            "trufflebox-ui/v1.1.0-beta-b449eb",
            "trufflebox-ui/v1.1.0-beta-872b57",
            "trufflebox-ui/v1.1.0-beta-130d95",
            "trufflebox-ui/v1.1.0",
            "online-feature-store/v1.1.0",
            "horizon/v1.1.0-beta-9ee5ed",
            "horizon/v1.1.0-alpha-f90454",
            "horizon/v1.1.0",
            "trufflebox-ui/v1.0.0-beta-8bbdd4",
            "online-feature-store/v1.0.0-beta-10d111",
            "horizon/v1.0.0-beta-8bbdd4",
            "online-feature-store/v1.0.0-beta-d74137",
            "trufflebox-ui/v1.0.0-beta-c4eb80",
            "online-feature-store/v1.0.0-beta-cce73d",
            "numerix/v1.0.0-beta-cce73d",
            "horizon/v1.0.0-beta-103fad",
            "horizon/v1.0.0-beta-cce73d",
            "py-sdk/1.0.1",
            "trufflebox-ui/v1.0.0",
            "py-sdk/1.0.0",
            "online-feature-store/v1.0.0",
            "horizon/v1.0.0",
            "go-sdk/v1.0.0",
            "trufflebox-ui/v1.0.0-beta-803cdc",
            "online-feature-store/v1.0.0-beta-803cdc",
            "horizon/v1.0.0-beta-803cdc",
            "py-sdk/1.0.0b0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39039.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.492885299Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39039.json",
        "https://github.com/wincr4ck/security-advisories/blob/main/bharatmlstack-cve-writeup.md",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-39039",
        "https://github.com/Meesho/BharatMLStack"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39039.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-39039",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498437,
  "published_at": "2026-09-15T00:00:00+00:00"
}