CVE-2026-8804 Cleartext Storage of Sensitive Information for Puppet Resource API
Attackers with local access can read sensitive parameters like passwords stored in cleartext in the Puppet agent's transaction state cache.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-8804?
CVE-2026-8804 is a medium-severity vulnerability in Perforce Puppet Core, published on 3 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Puppet resource_api (shipped in Puppet Core 8.x and Puppet Enterprise 2023.8.x and 2025.x) does not preserve the sensitive flag on parameters defined via the resource-api, causing values such as passwords to be stored in cleartext in the agent's local transaction state cache. Affected versions of the resource_api module include all versions between 1.5.0 - 1.9.1 and 2.0.0 The issue was fixed in puppet resource_api 1.9.2 and 2.0.1 released with Puppet Core 8.20.0 and PE 2023.8.10 & PE 2025.11.0.
Which versions are affected by CVE-2026-8804?
How do I fix CVE-2026-8804?
Upgrade to a fixed version.
Is CVE-2026-8804 being exploited?
There is no known exploitation of CVE-2026-8804 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-8804, GHSA-rh7m-r3xm-v5xg, UBUNTU-CVE-2026-8804.