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CVE-2026-40885
ANC
High

goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs leaks file-based ACL credentials through its public col…

CVSS
7.7
High
EPSS
0.00
p22
Published
2026-01-01
Updated
2026-01-01
Description

goshs is a SimpleHTTPServer written in Go. From 2.0.0-beta.4 to 2.0.0-beta.5, goshs leaks file-based ACL credentials through its public collaborator feed when the server is deployed without global basic auth. Requests to .goshs-protected folders are logged before authorization is enforced, and the collaborator websocket broadcasts raw request headers, including Authorization. An unauthenticated observer can capture a victim's folder-specific basic-auth header and replay it to read, upload, overwrite, and delete files inside the protected subtree. This vulnerability is fixed in 2.0.0-beta.6.

Tags · CWE
Pre-authInformation disclosure
CWE-200
CAPEC-13
CAPEC-22
CAPEC-59
CAPEC-60
CAPEC-79
CAPEC-116
CAPEC-169
CAPEC-224
CAPEC-285
CAPEC-287
CAPEC-290
CAPEC-291
CAPEC-292
CAPEC-293
CAPEC-294
CAPEC-295
CAPEC-296
CAPEC-297
CAPEC-298
CAPEC-299
CAPEC-300
CAPEC-301
CAPEC-302
CAPEC-303
CAPEC-304
CAPEC-305
CAPEC-306
CAPEC-307
CAPEC-308
CAPEC-309
CAPEC-310
CAPEC-312
CAPEC-313
CAPEC-317
CAPEC-318
CAPEC-319
CAPEC-320
CAPEC-321
CAPEC-322
CAPEC-323
CAPEC-324
CAPEC-325
CAPEC-326
CAPEC-327
CAPEC-328
CAPEC-329
CAPEC-330
CAPEC-472
CAPEC-497
CAPEC-508
CAPEC-573
CAPEC-574
CAPEC-575
CAPEC-576
CAPEC-577
CAPEC-616
CAPEC-643
CAPEC-646
CAPEC-651
Affected products
Goshs
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/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
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Attack Requirements
AT: P
Present
Privileges Required
PR: N
None (N)
User Interaction
UI: P
Passive
Vulnerable System Confidentiality
VC: H
High (H)
Vulnerable System Integrity
VI: H
High (H)
Vulnerable System Availability
VA: H
High (H)
Subsequent System Confidentiality
SC: N
None (N)
Subsequent System Integrity
SI: N
None (N)
Subsequent System Availability
SA: N
None (N)
Exploit Code Maturity
E: X
Not Defined
Confidentiality Requirement
CR: X
Not Defined
Integrity Requirement
IR: X
Not Defined
Availability Requirement
AR: X
Not Defined
Modified Attack Vector
MAV: X
Not Defined
Modified Attack Complexity
MAC: X
Not Defined
Modified Attack Requirements
MAT: X
Not Defined
Modified Privileges Required
MPR: X
Not Defined
Modified User Interaction
MUI: X
Not Defined
Modified Vulnerable System Confidentiality
MVC: X
Not Defined
Modified Vulnerable System Integrity
MVI: X
Not Defined
Modified Vulnerable System Availability
MVA: X
Not Defined
Modified Subsequent System Confidentiality
MSC: X
Not Defined
Modified Subsequent System Integrity
MSI: X
Not Defined
Modified Subsequent System Availability
MSA: X
Not Defined
s
S: X
X
au
AU: X
X
r
R: X
X
v
V: X
X
re
RE: X
X
u
U: X
X
Exploit indicators
EPSS
0.003 · p22
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-574 · CWE-200
└ via CAPEC-292 · CWE-200
└ via CAPEC-577 · CWE-200
└ via CAPEC-300 · CWE-200
└ via CAPEC-309 · CWE-200
└ via CAPEC-573 · CWE-200
└ via CAPEC-576 · CWE-200
└ via CAPEC-312 · CWE-200
└ via CAPEC-497 · CWE-200
└ via CAPEC-575 · CWE-200
└ via CAPEC-646 · CWE-200
└ via CAPEC-295 · CWE-200
└ via CAPEC-60 · CWE-200
└ via CAPEC-643 · CWE-200
└ via CAPEC-169 · CWE-200
└ via CAPEC-60 · CWE-200
└ via CAPEC-13 · CWE-200
└ via CAPEC-309 · CWE-200
└ via CAPEC-169 · CWE-200
└ via CAPEC-169 · CWE-200
└ via CAPEC-576 · CWE-200
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected products
ProductVendorStatus
Tracked
goshs*Tracked