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Vulnerability · Published Apr 22, 2026 · Assigned by VulDB

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

Medium 4.3

In plain English

A medium-severity security flaw in copilot-api from ericc-ch. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 82.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
npmcopilot-apino fix listedGHSA-3vr4-cvmg-7fx4

Affected products (as reported)

VendorProductVersions
ericc-ch copilot-api 0.10.20.30.40.50.60.7.0

Weakness: CWE-350 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

References