CVE-2026-70443 Missing authorization in Jenkins Horreum Plugin
Attackers with Item/Configure permission can force Jenkins to leak unauthorized credentials to the configured Horreum URL.
- 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-2026-70443?
CVE-2026-70443 is a medium-severity missing authorization vulnerability in Jenkins Horreum Plugin, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Horreum Plugin 0.16.162.v33b_4a_a_b_5f828 and earlier does not set the appropriate context for credentials lookup, allowing attackers with Item/Configure permission to have Jenkins send credentials they are not entitled to use to the administrator-configured Horreum URL.
Weakness: CWE-269
Which versions are affected by CVE-2026-70443?
How do I fix CVE-2026-70443?
No fix has been published for CVE-2026-70443 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-2026-70443 being exploited?
There is no known exploitation of CVE-2026-70443 in the wild and no public exploit code.
Sources
Also known as GHSA-84xf-jvr9-x4f9.