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CVE Vulnerability Details :
CVE-2026-6662
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-20 Apr, 2026 | 17:00
Updated At-20 Apr, 2026 | 18:09
Rejected At-
▼CVE Numbering Authority (CNA)
ericc-ch copilot-api Token Endpoint server.ts cors cross-domain policy

A vulnerability was found in ericc-ch copilot-api up to 0.7.0. The impacted element is the function cors of the file src/server.ts of the component Token Endpoint. Performing a manipulation results in permissive cross-domain policy with untrusted domains. It is possible to initiate the attack remotely. The exploit has been made public and could be used.

Affected Products
Vendor
ericc-ch
Product
copilot-api
Modules
  • Token Endpoint
Versions
Affected
  • 0.1
  • 0.2
  • 0.3
  • 0.4
  • 0.5
  • 0.6
  • 0.7.0
Problem Types
TypeCWE IDDescription
CWECWE-942Permissive Cross-domain Policy with Untrusted Domains
CWECWE-346Origin Validation Error
Type: CWE
CWE ID: CWE-942
Description: Permissive Cross-domain Policy with Untrusted Domains
Type: CWE
CWE ID: CWE-346
Description: Origin Validation Error
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.17.3HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
3.07.3HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
2.07.5N/A
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 7.3
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Version: 3.0
Base score: 7.3
Base severity: HIGH
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Version: 2.0
Base score: 7.5
Base severity: N/A
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
Yu_Bao (VulDB User)
Timeline
EventDate
Advisory disclosed2026-04-20 00:00:00
VulDB entry created2026-04-20 02:00:00
VulDB entry last update2026-04-20 14:06:55
Event: Advisory disclosed
Date: 2026-04-20 00:00:00
Event: VulDB entry created
Date: 2026-04-20 02:00:00
Event: VulDB entry last update
Date: 2026-04-20 14:06:55
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/vuln/358300
vdb-entry
technical-description
https://vuldb.com/vuln/358300/cti
signature
permissions-required
https://vuldb.com/submit/794601
third-party-advisory
https://github.com/August829/CVEP/issues/31
exploit
issue-tracking
Hyperlink: https://vuldb.com/vuln/358300
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/vuln/358300/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/submit/794601
Resource:
third-party-advisory
Hyperlink: https://github.com/August829/CVEP/issues/31
Resource:
exploit
issue-tracking
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found