CVE-2026-6874: ericc-ch copilot-api Header token dns rebinding

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-23 · updated 2026-10-26
Weakness: CWE-350

Description

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.

Affected products

ericc-ch copilot-api: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+1)

References

https://github.com/August829/CVEP/issues/32
https://vuldb.com/submit/795212
https://vuldb.com/vuln/359039
https://vuldb.com/vuln/359039/cti

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