What’s Vulnerable › Vulnerabilities

CVE-2026-66064: goshs has ACL Bypass & Path Traversal

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-28 · updated 2026-10-23
• Weakness: CWE-41

Description

goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/handler.go sendFile handler opened files using a cleaned path but derived the authorization filename from raw req.URL.Path, so a trailing slash could bypass .goshs ACL-file protection and block-list checks. This issue is fixed in version 2.1.5.

Affected products

• goshs-labs goshs: before 2.1.5

References

• https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fa
• https://github.com/goshs-labs/goshs/pull/222
• https://github.com/goshs-labs/goshs/security/advisories/GHSA-964w-f6gj-5236

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