CVE-2018-1000861

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-02-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • 100 internet-exposed hosts are running an affected version right now
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 98%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 100

A fix is available — apply it.

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.

Live · internet exposure

100 internet-exposed hosts are running an affected version of CVE-2018-1000861 right now.

across 17 countries (United States, China, Japan, Singapore, Germany)top: jenkins
See the live KEV-Exposure radar →Found passively from public internet-scan data — aggregate, host-redacted.

EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
98%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

December 10, 2018

Last Modified

November 5, 2025

Advisory Details (5)

Auto-updated Sep 17, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: redhat, cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-1000861
generic

Jenkins Security Advisory 2018-12-05

https://jenkins.io/security/advisory/2018-12-05/#SECURITY-595
redhat Patch Available
https://access.redhat.com/errata/RHBA-2019:0024
generic🔴 Active Exploitation

CVE-2018-1000861 - PSIRT.COM

http://www.securityfocus.com/bid/106176
generic

Packet Storm Security

http://packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.html

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatjenkins-0:2.138.4.1544416383-1.el72019-01-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.jenkins-ci.main:jenkins-core2.140 ... 2.153 (17 versions)2.154—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 50× in last 7d / 220× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 782 total refreshes for this CVE.

  1. 2026-09-19 10:53 UTCVendor advisory
  2. 2026-09-19 07:07 UTCVendor advisory
  3. 2026-09-19 03:21 UTCVendor advisory
  4. 2026-09-18 23:36 UTCVendor advisory
  5. 2026-09-18 19:49 UTCVendor advisory
  6. 2026-09-18 19:20 UTCCISA KEV update
  7. 2026-09-18 16:04 UTCVendor advisory
  8. 2026-09-18 14:15 UTCCISA KEV update
  9. 2026-09-18 12:15 UTCVendor advisory
  10. 2026-09-18 08:29 UTCVendor advisory
  11. 2026-09-18 04:44 UTCVendor advisory
  12. 2026-09-18 00:58 UTCVendor advisory
  13. 2026-09-17 21:13 UTCVendor advisory
  14. 2026-09-17 17:28 UTCVendor advisory
  15. 2026-09-17 13:18 UTCVendor advisory
  16. 2026-09-17 09:33 UTCVendor advisory
  17. 2026-09-17 05:47 UTCVendor advisory
  18. 2026-09-17 01:59 UTCVendor advisory
  19. 2026-09-16 22:13 UTCVendor advisory
  20. 2026-09-16 18:27 UTCVendor advisory
  21. 2026-09-16 14:42 UTCVendor advisory
  22. 2026-09-16 14:10 UTCCISA KEV update
  23. 2026-09-16 10:56 UTCVendor advisory
  24. 2026-09-16 07:11 UTCVendor advisory
  25. 2026-09-16 03:25 UTCVendor advisory
Show 75 more
  1. 2026-09-15 23:39 UTCVendor advisory
  2. 2026-09-15 19:53 UTCVendor advisory
  3. 2026-09-15 16:07 UTCVendor advisory
  4. 2026-09-15 12:21 UTCVendor advisory
  5. 2026-09-15 08:34 UTCVendor advisory
  6. 2026-09-15 04:48 UTCVendor advisory
  7. 2026-09-15 01:01 UTCVendor advisory
  8. 2026-09-14 21:15 UTCVendor advisory
  9. 2026-09-14 19:24 UTCCISA KEV update
  10. 2026-09-14 17:29 UTCVendor advisory
  11. 2026-09-14 13:43 UTCVendor advisory
  12. 2026-09-14 09:57 UTCVendor advisory
  13. 2026-09-14 06:08 UTCVendor advisory
  14. 2026-09-14 02:23 UTCVendor advisory
  15. 2026-09-13 22:37 UTCVendor advisory
  16. 2026-09-13 18:52 UTCVendor advisory
  17. 2026-09-13 15:03 UTCVendor advisory
  18. 2026-09-13 11:17 UTCVendor advisory
  19. 2026-09-13 07:31 UTCVendor advisory
  20. 2026-09-13 03:45 UTCVendor advisory
  21. 2026-09-12 23:59 UTCVendor advisory
  22. 2026-09-12 20:13 UTCVendor advisory
  23. 2026-09-12 16:27 UTCEG score recompute
  24. 2026-09-12 16:27 UTCVendor advisory
  25. 2026-09-12 14:56 UTCEPSS rescore
  26. 2026-09-12 12:41 UTCVendor advisory
  27. 2026-09-12 08:55 UTCVendor advisory
  28. 2026-09-12 05:09 UTCVendor advisory
  29. 2026-09-12 01:23 UTCVendor advisory
  30. 2026-09-11 21:37 UTCVendor advisory
  31. 2026-09-11 18:49 UTCCISA KEV update
  32. 2026-09-11 17:52 UTCVendor advisory
  33. 2026-09-11 14:06 UTCVendor advisory
  34. 2026-09-11 10:20 UTCVendor advisory
  35. 2026-09-11 06:30 UTCVendor advisory
  36. 2026-09-11 02:44 UTCVendor advisory
  37. 2026-09-10 22:58 UTCVendor advisory
  38. 2026-09-10 19:28 UTCCISA KEV update
  39. 2026-09-10 19:12 UTCVendor advisory
  40. 2026-09-10 15:26 UTCVendor advisory
  41. 2026-09-10 11:40 UTCVendor advisory
  42. 2026-09-10 07:54 UTCVendor advisory
  43. 2026-09-10 04:08 UTCVendor advisory
  44. 2026-09-10 00:22 UTCVendor advisory
  45. 2026-09-09 20:34 UTCVendor advisory
  46. 2026-09-09 19:08 UTCCISA KEV update
  47. 2026-09-09 16:47 UTCVendor advisory
  48. 2026-09-09 13:00 UTCVendor advisory
  49. 2026-09-09 09:13 UTCVendor advisory
  50. 2026-09-09 05:27 UTCVendor advisory
  51. 2026-09-09 01:42 UTCVendor advisory
  52. 2026-09-08 21:56 UTCVendor advisory
  53. 2026-09-08 18:54 UTCCISA KEV update
  54. 2026-09-08 18:10 UTCVendor advisory
  55. 2026-09-08 14:14 UTCVendor advisory
  56. 2026-09-08 10:29 UTCVendor advisory
  57. 2026-09-08 06:41 UTCVendor advisory
  58. 2026-09-08 02:55 UTCVendor advisory
  59. 2026-09-07 23:09 UTCVendor advisory
  60. 2026-09-07 19:23 UTCVendor advisory
  61. 2026-09-07 15:38 UTCVendor advisory
  62. 2026-09-07 11:52 UTCVendor advisory
  63. 2026-09-07 08:04 UTCVendor advisory
  64. 2026-09-07 04:16 UTCVendor advisory
  65. 2026-09-07 00:30 UTCVendor advisory
  66. 2026-09-06 20:45 UTCVendor advisory
  67. 2026-09-06 16:59 UTCVendor advisory
  68. 2026-09-06 13:13 UTCVendor advisory
  69. 2026-09-06 09:27 UTCVendor advisory
  70. 2026-09-06 05:42 UTCVendor advisory
  71. 2026-09-06 01:56 UTCVendor advisory
  72. 2026-09-05 22:09 UTCVendor advisory
  73. 2026-09-05 18:22 UTCVendor advisory
  74. 2026-09-05 14:37 UTCVendor advisory
  75. 2026-09-05 10:51 UTCVendor advisory

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoC1NTheKut/CVE-2019-1003000_RCE-DETECTION
    First seen Apr 24, 2019

    A C# module to detect if a Jenkins server is vulnerable to the RCE vulnerability found in CVE-2019-1003000 (chained with CVE-2018-1000861 for pre-auth RCE)

    Open source ↗
  • Metasploitexploit/multi/http/jenkins_metaprogramming✓ verified
    First seen Jan 8, 2019

    Jenkins ACL Bypass and Metaprogramming RCE

    Open source ↗
  • Nucleihttp/cves/2018/CVE-2018-1000861.yaml
    First seen Jan 1, 2018

    Jenkins - Remote Command Injection

    Open source ↗

Frequently asked(6)

What is CVE-2018-1000861?
CVE-2018-1000861 is a critical vulnerability published on December 10, 2018. 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…
When was CVE-2018-1000861 disclosed?
CVE-2018-1000861 was first published in the National Vulnerability Database on December 10, 2018, with the most recent update on November 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-1000861 actively exploited?
Yes. CISA added CVE-2018-1000861 to the Known Exploited Vulnerabilities catalog on February 10, 2022, affecting Jenkins Jenkins Stapler Web Framework. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-1000861?
CVE-2018-1000861 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2018-1000861?
CVE-2018-1000861 affects Jenkins Jenkins Stapler Web Framework. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2018-1000861?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1000861, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-1000861

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