CVE-2026-85665

Description

Bruno versions through 3.4.2 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.

CVSS Vector

References

• https://github.com/usebruno/bruno
• https://github.com/usebruno/bruno/blob/v4.1.0/packages/bruno-cli/src/runner/prepare-request.js
• https://github.com/usebruno/bruno/issues/8230
• https://www.vulncheck.com/advisories/bruno-3.4.2-arbitrary-file-read-via-unconfined-body-file-path
• https://github.com/usebruno/bruno/issues/8230