MEDIUMpublic-safe

CVE-2026-66063

NVD: goshs is a feature-rich single-binary file server for red teamers and developers. NVD: Prior to 2.1.5, the httpserver/updown.go multipart upload handler split part.FileName() on / but did not reject .., allowing an unauthenticated upload with filename .. NVD: to create a file outside the served tree.

CVSS
6.5 Severity
MEDIUM EPSS
0.0023 (14) KEV
-

Source-published summary

Possible impact

Source describes path traversal review. Possible impact: An attacker may be able to reach files outside the intended application path.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Patch confirmed by source text; fixed version context: version.

Why it matters

Source describes path traversal review. Possible impact: An attacker may be able to reach files outside the intended application path.; CVSS 6.5 (MEDIUM); EPSS percentile 14; not listed in KEV; Patch confirmed by source text; fixed version context: version; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

path traversal review

Urgency reasons

vendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.