CVE-2026-85665
Bruno through 4.1.0 Arbitrary File Read via Unconfined Body File Path
- State
- Published
- Severity
- 7.1 High
- Published
- Sep 4, 2026
- Updated
- Sep 5, 2026
- Reserved
- Sep 4, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | 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 | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
brunousebruno |
|
References
- GitHub Issue #8230issue-tracking
- https://github.com/usebruno/brunoproduct
- https://github.com/usebruno/bruno/blob/v4.1.0/packages/bruno-cli/src/runner/prepare-request.jstechnical-description
- VulnCheck Advisory: Bruno 3.4.2 Arbitrary File Read via Unconfined Body File Paththird-party-advisory
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