Read the docs
TI-2026-58777 Aliases CVE-2026-85665GHSA-c887-2p5m-25wx

Bruno through 4.1.0 Arbitrary File Read via Unconfined Body File Path

Priority MEDIUM 64CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00769 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
usebrunobrunoup to 4.1.0—No fix listedCNA
  • bruno Vendorusebruno Affected up to 4.1.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:usebruno:bruno:*:*:*:*:*:*:*:*——usebruno
  • cpe:2.3:a:usebruno:bruno:*:*:*:*:*:*:*:* Versions — — ·usebruno

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-85665
  2. 2026-10-03 Alias added: GHSA-c887-2p5m-25wx

References

Other 3

  • TI-2024-32402 Bruno before 1.29.1 uses Electron shell.openExternal without validation (of http or… CVSS 3.1MEDIUM 6.5
  • TI-2026-27085 Axios npm Supply Chain Incident Impacting @usebruno/cli CVSS 3.1CRITICAL 9.8
  • TI-2025-21660 Bruno ignores Safe-Mode in Asserts expressions CVSS 4.0HIGH 8.7
  • TI-2025-21546 Bruno XSS On Environment Name CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences