CVE-2026-16526 Pcp: pcp: privilege escalation to root via linux_sockets pmda vulnerability
An attacker with local access can exploit an unsecured internal connection in the PCP linux_sockets module to escalate privileges to root.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-16526?
CVE-2026-16526 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.
Weakness: CWE-403
Which versions are affected by CVE-2026-16526?
How do I fix CVE-2026-16526?
Apply the vendor's patch.
Is CVE-2026-16526 being exploited?
There is no known exploitation of CVE-2026-16526 in the wild and no public exploit code.
Sources
Also known as AZL-94380, DEBIAN-CVE-2026-16526, GHSA-534w-2xfq-h655, UBUNTU-CVE-2026-16526.