Is CVE-2026-6662 in the CISA KEV catalog?

No. CVE-2026-6662 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-6662?

CVE-2026-6662 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2026-6662?

CVE-2026-6662 has an EPSS score of 0.18% (8th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-6662?

No published fix for CVE-2026-6662 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-6662

HIGH

7.3

CVSS v3

NVD

Description

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-346 CWE-942

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

0.18%probability of exploitation in 30 days

8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Other references4

Embed a live status badge for CVE-2026-6662

Markdown

[![CVE-2026-6662](https://tridentstack.com/cve/badge/CVE-2026-6662.svg)](https://tridentstack.com/cve/CVE-2026-6662)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-6662"><img src="https://tridentstack.com/cve/badge/CVE-2026-6662.svg" alt="CVE-2026-6662"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.