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High

Bruno through 4.1.0 Arbitrary File Read via Unconfined Body File Path

Type: advisorySources: OSV

Bruno versions through 4.1.0 fail to validate file paths in request body declarations, allowing attackers to read arbitrary local files by using parent-directory traversal segments. When a collection is executed, attackers can craft a request with a body:file path containing ../ sequences that resolve outside the collection directory, causing the application to read and exfiltrate arbitrary files to attacker-controlled endpoints.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-85665
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 18:37 UTC · Revision 1

Source evidence

Bruno through 4.1.0 Arbitrary File Read via Unconfined Body File Path

core-osv · Original source

Published 4 Sept 2026, 14:32 UTC

Bruno versions through 4.1.0 fail to validate file paths in request body declarations, allowing attackers to read arbitrary local files by using parent-directory traversal segments. When a collection is executed, attackers can craft a request with a body:file path containing ../ sequences that resolve outside the collection directory, causing the application to read and exfiltrate arbitrary files to attacker-controlled endpoints.

osv:CVE-2026-85665
Complete source record
{
  "id": "d2dd285b72f65ef8128d898cfff6b63fc1e7dd176eaa880fcd5c34a47c276684",
  "url": "https://osv.dev/vulnerability/CVE-2026-85665",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Bruno through 4.1.0 Arbitrary File Read via Unconfined Body File Path",
    "summary": "Bruno versions through 4.1.0 fail to validate file paths in request body declarations, allowing attackers to read arbitrary local files by using parent-directory traversal segments. When a collection is executed, attackers can craft a request with a body:file path containing ../ sequences that resolve outside the collection directory, causing the application to read and exfiltrate arbitrary files to attacker-controlled endpoints.",
    "evidence": "osv:CVE-2026-85665",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-85665",
      "aliases": [
        "CVE-2026-85665"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/usebruno/bruno",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "eeff774e95afc5de5f8b7bf9e201c474f9299516"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.1.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.1.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.1.0",
            "v3.0.1",
            "v3.0.0",
            "v2.14.1",
            "v2.14.0",
            "v2.13.1",
            "v2.13.0",
            "v2.9.0",
            "v2.8.0",
            "v2.7.0",
            "v2.4.0",
            "v2.6.0",
            "v2.6.1",
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            "v2.3.0",
            "v2.2.0",
            "v2.1.0",
            "v2.0.1",
            "v1.40.0",
            "v2.0.0",
            "v1.39.1",
            "v1.39.0",
            "v1.38.1",
            "v1.38.0",
            "v1.37.0",
            "v1.36.1",
            "v1.36.0",
            "v1.34.2",
            "v1.34.1",
            "v1.34.0",
            "v1.33.1",
            "v1.33.0",
            "v1.32.1",
            "v1.32.0",
            "v1.31.0",
            "v1.30.1",
            "v1.30.0",
            "v1.29.1",
            "v1.29.0",
            "v1.28.0",
            "v1.27.0",
            "v1.26.2",
            "v1.26.1",
            "v1.26.0",
            "v1.25.0",
            "v1.24.0",
            "v1.23.1",
            "v1.23.0",
            "v1.22.0",
            "v1.21.0",
            "v1.20.4",
            "v1.20.3",
            "v1.20.2",
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            "v1.19.0",
            "v1.18.1",
            "v1.18.0",
            "v1.17.0",
            "v1.16.1",
            "v1.16.0",
            "v1.14.0",
            "v1.13.1",
            "v1.13.0",
            "v1.12.3",
            "v1.12.2",
            "v1.12.1",
            "v1.12.0",
            "v1.11.0",
            "v1.10.0",
            "v1.9.0",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v1.6.1",
            "v1.6.0",
            "v1.5.1",
            "v1.5.0",
            "v1.3.2",
            "v1.4.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0",
            "v0.27.3",
            "v0.27.2",
            "v0.27.1",
            "v0.27.0",
            "v0.26.0",
            "v0.25.0",
            "v0.24.0",
            "v0.23.0",
            "v0.22.1",
            "v0.22.0",
            "v0.16.5",
            "v0.21.1",
            "v0.21.0",
            "v0.20.0",
            "v0.16.3",
            "v0.19.0",
            "v0.18.0",
            "v0.17.0",
            "v0.16.6",
            "v0.16.4",
            "v0.16.2",
            "v0.16.1",
            "v0.16.0",
            "v0.15.3",
            "v0.15.2",
            "v0.15.1",
            "v0.15.0",
            "v0.14.1",
            "v0.14.0",
            "v0.13.2",
            "v0.13.1",
            "v0.13.0",
            "v0.12.2",
            "v0.12.1",
            "v0.12.0",
            "v0.11.0",
            "v0.10.2",
            "v0.10.1",
            "v0.10.0",
            "v0.9.4",
            "v0.9.3",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0",
            "v0.6.1",
            "v0.6.0",
            "v0.5.0",
            "v0.4.0",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85665.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.454503255Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85665.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-85665",
        "https://www.vulncheck.com/advisories/bruno-3.4.2-arbitrary-file-read-via-unconfined-body-file-path",
        "https://github.com/usebruno/bruno/issues/8230",
        "https://github.com/usebruno/bruno",
        "https://github.com/usebruno/bruno/blob/v4.1.0/packages/bruno-cli/src/runner/prepare-request.js"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85665.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-85665",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505757,
  "published_at": "2026-09-04T14:32:21.592+00:00"
}