EUVD-2026-53536
GHSA-67r4-vj46-3qpx
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Network vector with low complexity; Agent/Connect (low privilege) sufficient; scope change as agent exploits controller; full CIA impact on controller.
Primary rating from Vendor (CNA).
CVSS VectorVendor
Lifecycle Timeline
3Description PRE-NVD
AnalysisAI
Remote code execution and privilege escalation are the headline risks in this Jenkins advisory covering multiple vulnerabilities in Jenkins core (versions 2.575/LTS 2.568.1 and earlier) and eleven plugins. The most critical flaw (CVE-2026-70426) bypasses the JEP-200 deserialization class filter via a fallback path in the Remoting library, allowing an agent process or a user with Agent/Connect permission to execute arbitrary code on the Jenkins controller. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | CVE-2026-70426 requires Agent/Connect permission or the ability to control an agent process - a condition met by any developer who can connect a build agent in shared Jenkins deployments, or by an attacker who has compromised an existing agent. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | No CVSS score or vector was provided in the input data, and no EPSS probability or CISA KEV listing is present. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Jenkins core to version 2.576 (weekly) or Jenkins LTS 2.568.2 to resolve CVE-2026-70426 through CVE-2026-70430. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Jenkins instances running versions 2.575, LTS 2.568.1, or earlier and audit which users and service accounts hold Agent/Connect permissions. …
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Same weakness CWE-285 – Improper Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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