Jenkins Security Advisory 2026-06-10

CSIRTS triage

What

This advisory addresses multiple vulnerabilities in Jenkins Core.

Who is affected

Deployments of Jenkins Core are affected.

Urgency

Remediation is necessary, but the severity is currently unknown.

Action

Update to the latest version of Jenkins Core.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Jenkins Security Advisories (INTL · vendor-psirt · site)

Severity

unknown

Published

2026-06-10

Exploitation

Not in CISA KEV at last sync

Original advisory: https://www.jenkins.io/security/advisory/2026-06-10/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Elevated exploitation riskCVE-2026-5343514.9% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all scored CVEs.
• Low exploitation riskCVE-2026-534360.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all scored CVEs.
• Low exploitation riskCVE-2026-534370.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all scored CVEs.
• Low exploitation riskCVE-2026-534380.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all scored CVEs.
• Low exploitation riskCVE-2026-534390.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all scored CVEs.
• Low exploitation riskCVE-2026-534400.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.
• Low exploitation riskCVE-2026-534410.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.
• Low exploitation riskCVE-2026-534420.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all scored CVEs.

Referenced CVEs

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