Medium 5.3Published Jul 28, 2026

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

Updated under an hour ago (Oct 26, 2026, 10:00 AM ET)

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Every CVE for goshs-labs goshs

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-41, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

goshs-labs goshs goshs_labs:goshs (from the name)	before 2.1.5	CNA record

References

https://github.com/goshs-labs/goshs/security/advisories/GHSA-964w-f6gj-5236x-refsource-confirm
https://github.com/goshs-labs/goshs/pull/222x-refsource-misc
https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fax-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.