CVE-2026-107589 Authentication Bypass by Spoofing in Jacamar CI

High 7.5 Published Updated

Authenticated users can spoof service account names due to insufficient validation, potentially escalating privileges within the CI environment.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-107589?

CVE-2026-107589 is a high-severity authentication bypass vulnerability in Jacamar CI, published on 8 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Insufficient job validation for service accounts in Jacamar CI prior to v0.30.0 allows authenticated CI users to generate arbitrary account names.

Weakness: CWE-290

Which versions are affected by CVE-2026-107589?

How do I fix CVE-2026-107589?

No fix has been published for CVE-2026-107589 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-107589 being exploited?

There is no known exploitation of CVE-2026-107589 in the wild and no public exploit code.

Sources

Also known as GHSA-x75h-475x-5665.

Is CVE-2026-107589 in your software?

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