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DeepCode 1.2.0 Path Traversal via SPA Catch-All Route in main.py

Type: advisorySources: OSV

DeepCode through commit c991dc2 contains a path traversal vulnerability in the SPA catch-all route in new_ui/backend/main.py that allows unauthenticated attackers to read arbitrary files by supplying percent-encoded path segments to the GET /{full_path:path} endpoint. Attackers can bypass Starlette's path normalization by encoding slashes as %2F and dots as %2E%2E, causing the joined path to traverse outside FRONTEND_DIST and exposing sensitive files such as SSH private keys, TLS certificates, and application secrets with a single HTTP request.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-32847
Confirmed fixed CVEs
Not specified
Updated in this feed
6 Nov 2026, 02:15 UTC · Revision 1

Source evidence

DeepCode 1.2.0 Path Traversal via SPA Catch-All Route in main.py

core-osv · Original source

Published 28 May 2026, 19:32 UTC

DeepCode through commit c991dc2 contains a path traversal vulnerability in the SPA catch-all route in new_ui/backend/main.py that allows unauthenticated attackers to read arbitrary files by supplying percent-encoded path segments to the GET /{full_path:path} endpoint. Attackers can bypass Starlette's path normalization by encoding slashes as %2F and dots as %2E%2E, causing the joined path to traverse outside FRONTEND_DIST and exposing sensitive files such as SSH private keys, TLS certificates, and application secrets with a single HTTP request.

osv:CVE-2026-32847
Complete source record
{
  "id": "84b59bf1c0b0ab9d658e13981f8e526dbb2f2aa6b662ea012864cdab3f37a69b",
  "url": "https://osv.dev/vulnerability/CVE-2026-32847",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DeepCode 1.2.0 Path Traversal via SPA Catch-All Route in main.py",
    "summary": "DeepCode through commit c991dc2 contains a path traversal vulnerability in the SPA catch-all route in new_ui/backend/main.py that allows unauthenticated attackers to read arbitrary files by supplying percent-encoded path segments to the GET /{full_path:path} endpoint. Attackers can bypass Starlette's path normalization by encoding slashes as %2F and dots as %2E%2E, causing the joined path to traverse outside FRONTEND_DIST and exposing sensitive files such as SSH private keys, TLS certificates, and application secrets with a single HTTP request.",
    "evidence": "osv:CVE-2026-32847",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-32847",
      "aliases": [
        "CVE-2026-32847"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hkuds/deepcode",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "ca2c068ec9f4b0b5fe8c2cbd7b7f73090f5058bc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.2.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:hkuds:deepcode:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2.0",
            "v1.1.0",
            "v1.0.9",
            "v1.0.8",
            "v1.0.7",
            "v1.0.6",
            "v1.0.5",
            "v1.0.4",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32847.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.296668533Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32847.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-32847",
        "https://www.vulncheck.com/advisories/deepcode-path-traversal-via-spa-catch-all-route-in-main-py",
        "https://github.com/HKUDS/DeepCode/issues/126",
        "https://github.com/HKUDS/DeepCode"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32847.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-32847",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514198,
  "published_at": "2026-05-28T19:32:13.224+00:00"
}