CVE Catalog

CVE-2026-6874

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.26%

17th percentile - higher than 17% of all known CVEs

Summary

A vulnerability was determined in ericc-ch copilot-api up to 0.7.0. It impacts an unknown function of the file /token of the Header Handler component. Manipulation of the Host argument can lead to reliance on reverse DNS resolution.

Risk Assessment

An attacker can remotely exploit the vulnerability, potentially leading to incorrect routing or bypass of host-based protections. The exploit has been publicly disclosed and may be utilized.

Recommendation

Implement validation of the Host header and avoid reliance on reverse DNS resolution, and update the software if a fix is available.

Related vulnerabilities

Original NVD description (English source)

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 resolution. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS