CVE-2026-6662

HIGH 7.3

ericc-ch copilot-api Token Endpoint server.ts cors cross-domain policy

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-942 CWE-346
Vendor	ericc-ch
Product	copilot-api
Published	Apr 20, 2026
Last Updated	Apr 20, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

ericc-ch / copilot-api

0.1 0.2 0.3 0.4 0.5 0.6 0.7.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/358300 vuldb.com: https://vuldb.com/vuln/358300/cti vuldb.com: https://vuldb.com/submit/794601 github.com: https://github.com/August829/CVEP/issues/31

Credits

🔍 Yu_Bao (VulDB User)