CVE-2026-6874: Reliance on Reverse DNS Resolution in ericc-ch copilot-api
CVE-2026-6874 is a medium severity vulnerability in the ericc-ch copilot-api up to version 0. 7. 0. It involves reliance on reverse DNS resolution triggered by manipulation of the Host argument in the /token endpoint of the Header Handler component. The vulnerability can be exploited remotely and has been publicly disclosed. The vendor has not responded to the disclosure, and no official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
This vulnerability in ericc-ch copilot-api (versions 0.1 through 0.7.0) arises from the application relying on reverse DNS resolution when processing the Host argument in the /token endpoint of the Header Handler component. An attacker can manipulate this argument remotely to exploit this behavior. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. There is no vendor response or official fix available at this time.
Potential Impact
Exploitation of this vulnerability may allow an attacker to influence or manipulate the reverse DNS resolution process within the affected component. The exact impact is not detailed, but reliance on reverse DNS can lead to security issues such as spoofing or unauthorized access depending on the application's use of the resolved hostnames. No known exploits are reported in the wild.
Mitigation Recommendations
No official patch or remediation is currently available, and the vendor has not provided guidance. Users should monitor vendor channels for updates. Until a fix is released, consider restricting access to the /token endpoint or implementing network-level controls to limit exposure. Avoid relying on reverse DNS resolution for security decisions in the affected component.
CVE-2026-6874: Reliance on Reverse DNS Resolution in ericc-ch copilot-api
Description
CVE-2026-6874 is a medium severity vulnerability in the ericc-ch copilot-api up to version 0. 7. 0. It involves reliance on reverse DNS resolution triggered by manipulation of the Host argument in the /token endpoint of the Header Handler component. The vulnerability can be exploited remotely and has been publicly disclosed. The vendor has not responded to the disclosure, and no official patch or remediation guidance is currently available.
CVSS v4.0
Score 5.3medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in ericc-ch copilot-api (versions 0.1 through 0.7.0) arises from the application relying on reverse DNS resolution when processing the Host argument in the /token endpoint of the Header Handler component. An attacker can manipulate this argument remotely to exploit this behavior. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. There is no vendor response or official fix available at this time.
Potential Impact
Exploitation of this vulnerability may allow an attacker to influence or manipulate the reverse DNS resolution process within the affected component. The exact impact is not detailed, but reliance on reverse DNS can lead to security issues such as spoofing or unauthorized access depending on the application's use of the resolved hostnames. No known exploits are reported in the wild.
Mitigation Recommendations
No official patch or remediation is currently available, and the vendor has not provided guidance. Users should monitor vendor channels for updates. Until a fix is released, consider restricting access to the /token endpoint or implementing network-level controls to limit exposure. Avoid relying on reverse DNS resolution for security decisions in the affected component.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-22T18:20:59.444Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e95f0987115cfb681418a8
Added to database: 4/22/2026, 11:51:37 PM
Last enriched: 4/30/2026, 8:12:40 AM
Last updated: 6/5/2026, 1:19:58 PM
Views: 63
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