ericc-ch copilot-api up to 0.7.0 Header /token Host dns rebinding
Summary
A vulnerability identified as problematic has been detected in ericc-ch copilot-api up to 0.7.0. Affected is an unknown function of the file /token of the component Header Handler. The manipulation of the argument Host leads to dns rebinding. This vulnerability is traded as CVE-2026-6874. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability, which was classified as problematic, has been found in ericc-ch copilot-api up to 0.7.0. This issue affects some unknown functionality of the file /token of the component Header Handler. The manipulation of the argument Host with an unknown input leads to a dns rebinding vulnerability. Using CWE to declare the problem leads to CWE-350. The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname. Impacted is integrity.
It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-6874. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1583.002 according to MITRE ATT&CK.
The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 3.9
VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Dns rebindingCWE: CWE-350
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/22/2026 Advisory disclosed04/22/2026 VulDB entry created
04/22/2026 VulDB entry last update
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2026-6874 (🔒)
GCVE (CVE): GCVE-0-2026-6874
GCVE (VulDB): GCVE-100-359039
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 04/22/2026 20:26Changes: 04/22/2026 20:26 (57)
Complete: 🔍
Submitter: Yu_Bao
Cache ID: 216::103
Submit
Accepted
- Submit #795212: ericc-ch copilot-api 0.7.0 DNS Rebinding Attack (by Yu_Bao)
Be aware that VulDB is the high quality source for vulnerability data.
No comments yet. Languages: en.
Please log in to comment.