CVE-2026-6874

MEDIUM

ericc-ch copilot-api Header token dns rebinding

Title source: cna
STIX 2.1

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.

References (4)

Core 4
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-359039 | ericc-ch copilot-api Header token dns rebinding
https://vuldb.com/vuln/359039
Signature, Permissions Required signature permissions-required
VDB-359039 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/359039/cti
Third Party Advisory third-party-advisory
Submit #795212 | ericc-ch copilot-api 0.7.0 DNS Rebinding Attack
https://vuldb.com/submit/795212
Exploit exploit issue-tracking
https://github.com/August829/CVEP/issues/32

Scores

CVSS v3 4.3
EPSS 0.0001
EPSS Percentile 1.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-350
Status published
Products (8)
ericc-ch/copilot-api 0.1
ericc-ch/copilot-api 0.2
ericc-ch/copilot-api 0.3
ericc-ch/copilot-api 0.4
ericc-ch/copilot-api 0.5
ericc-ch/copilot-api 0.6
ericc-ch/copilot-api 0.7.0
npm/copilot-api 0npm
Published Apr 23, 2026
Tracked Since Apr 23, 2026