CVE-2026-6043 Insecure Default Configuration in P4 Server
Insecure default settings in Perforce Helix Core Server allow unauthenticated attackers to create accounts, enumerate users, and access depot contents.
- 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-2026-6043?
CVE-2026-6043 is a high-severity vulnerability in Perforce Helix Core Server (P4D), published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
P4 Server versions prior to 2026.1 are configured with insecure default settings that, when exposed to untrusted networks, allow unauthenticated attackers to create arbitrary user accounts, enumerate existing users, authenticate to accounts with no password set, and access depot contents via the built-in 'remote' user. These default settings, taken together, can lead to unauthorized access to source code repositories and other managed assets. The 2026.1 release, expected in May 2026, enforces secure-by-default configurations on upgrade and new installations
Weakness: CWE-1188
Which versions are affected by CVE-2026-6043?
How do I fix CVE-2026-6043?
No fix has been published for CVE-2026-6043 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6043 being exploited?
There is no known exploitation of CVE-2026-6043 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-rv45-r523-m576.