What is CVE-2026-6874?

CVE-2026-6874 is a medium-severity vulnerability in Ericc-ch Copilot-api, classified under CWE-350. CVSS score: 4.3/10. Published 2026-04-23.

How severe is CVE-2026-6874?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Ericc-ch Copilot-api

CVE-2026-6874

A vulnerability was determined in ericc-ch copilot-api up to 0.7.0. This impacts an unknown function of the file /token of the component Header Handler. Executing a manipulation of the argument Host can lead to reliance on reverse dns reso…

EPSS: 0.000 (1.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Ericc-ch Copilot-api — versions 0.1, 0.2, 0.3

Weakness classification (CWE)

CWE-350

References

VDB-359039 | ericc-ch copilot-api Header token dns rebinding (technical-description, vdb-entry)
VDB-359039 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #795212 | ericc-ch copilot-api 0.7.0 DNS Rebinding Attack (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)

Frequently asked questions

What is CVE-2026-6874?: CVE-2026-6874 is a medium-severity vulnerability in Ericc-ch Copilot-api, classified under CWE-350. CVSS score: 4.3/10. Published 2026-04-23.
How severe is CVE-2026-6874?: Medium severity. CVSS v3 base score is 4.3 out of 10.