CVE-2026-84666 Path traversal in Jenkins Job Configuration History Plugin
Attackers can overwrite history recording configuration via Stapler data binding to redirect storage to arbitrary directories and modify settings.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84666?
CVE-2026-84666 is a medium-severity path traversal vulnerability in Jenkins Job Configuration History Plugin, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Job Configuration History Plugin 1367.vc8fa_b_15101dc and earlier allows overwriting the plugin's history recording configuration through Stapler data binding, allowing attackers to redirect history storage to an attacker-specified directory and modify history recording settings.
Which versions are affected by CVE-2026-84666?
How do I fix CVE-2026-84666?
No fix has been published for CVE-2026-84666 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-84666 being exploited?
There is no known exploitation of CVE-2026-84666 in the wild and no public exploit code.
Sources
Also known as GHSA-9prm-5833-4v96.