Deserialization in Jenkins
CVE-2018-1000861
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…
Vulnerability class: Insecure Deserialization
EPSS: 0.985 (99.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Jenkins
- Redhat Openshift_container_platform — versions 3.11
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (vdb-entry, Broken Link, x_refsource_BID)
- cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2018-1000861?
- CVE-2018-1000861 is a critical-severity vulnerability in Jenkins, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2018-12-10.
- How severe is CVE-2018-1000861?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-1000861 known to be exploited?
- Yes. CVE-2018-1000861 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-10), indicating it is being actively exploited. 88 public proof-of-concept repositories are indexed.