PT-2026-33809 · Unknown · Copilot-Api

Yu_Bao · Published 2026-04-20 · Updated 2026-04-21 · CVE-2026-6662

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions ericc-ch copilot-api versions prior to 0.7.1

Description A flaw exists in the Token Endpoint component within the cors() function of the src/server.ts file. A manipulation of this function allows for a permissive cross-domain policy with untrusted domains, which can be triggered remotely.

Recommendations Update ericc-ch copilot-api to a version later than 0.7.0. As a temporary workaround, restrict access to the cors() function in the src/server.ts file to minimize the risk of exploitation.

Exploit

Fix

Origin Validation Error

Weakness Enumeration

CWE-942

CWE-346

Related Identifiers

CVE-2026-6662

Affected Products

Copilot-Api

References · 6

• 🔥 https://github.com/August829/CVEP/issues/31 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-6662 · Security Note
• https://twitter.com/CVEnew/status/2046571918120390820 · Twitter Post
• https://vuldb.com/vuln/358300 · Note
• https://vuldb.com/vuln/358300/cti · Note
• https://vuldb.com/submit/794601 · Note