CVE-2026-85665

Published: Sep 4, 2026Modified: Sep 5, 2026

7.1

Vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

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.

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (5)

https://github.com/usebruno/bruno

Source: disclosure@vulncheck.com

https://github.com/usebruno/bruno/blob/v4.1.0/packages/bruno-cli/src/runner/prepare-request.js

Source: disclosure@vulncheck.com

https://github.com/usebruno/bruno/issues/8230

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/bruno-3.4.2-arbitrary-file-read-via-unconfined-body-file-path

Source: disclosure@vulncheck.com

https://github.com/usebruno/bruno/issues/8230

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.