Is CVE-2018-1000861 actively exploited?

CVE-2018-1000861 has no public evidence of in-the-wild exploitation as of 2025-11-05.

What is the CVSS score for CVE-2018-1000861?

CVE-2018-1000861 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-1000861?

Patch guidance is available from jenkins security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-1000861.

Fix CVE-2018-1000861 - CRITICAL jenkins jenkins

Q: Which products are affected by CVE-2018-1000861?

3 products: jenkins jenkins, jenkins jenkins, redhat openshift container platform.

Description

A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in stapler/core/src/main/java/org/kohsuke/stapler/MetaClass.java that allows attackers to invoke some methods on Java objects by accessing crafted URLs that were not intended to be invoked this way.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization CWE-502 · Insecure Deserialization

Metadata

Primary Vendor: JENKINS
Published: 12/10/2018
Last Modified: 11/5/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2018-1000861

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary