CVE-2026-5756 Unauthenticated Configuration File Modification Vulnerability in DRC Central Office Services (COS)
Unauthenticated attackers can modify configuration files, enabling data exfiltration, traffic interception, or service disruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5756?
CVE-2026-5756 is a high-severity missing authorization vulnerability in Data Recognition Corporation Central Office Services - Content Hosting Component, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unauthenticated Configuration File Modification Vulnerability in DRC Central Office Services (COS) allows an attacker to modify the server's configuration file, potentially leading to mass data exfiltration, malicious traffic interception, or disruption of testing services.
Which versions are affected by CVE-2026-5756?
How do I fix CVE-2026-5756?
No fix has been published for CVE-2026-5756 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-5756 being exploited?
There is no known exploitation of CVE-2026-5756 in the wild and no public exploit code.
Sources
Also known as GHSA-qrm3-xjrv-8v85.