CVE-2018-1000861 (GCVE-0-2018-1000861)

Vulnerability from cvelistv5 – Published: 2018-12-10 14:00 – Updated: 2025-10-21 23:45
VLAI CISA Shadowserver KEVIntel
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • n/a
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Date Public
2018-12-10 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 812e1ff5-1449-4378-bbc3-65ad133150d5

Vulnerability ID: CVE-2018-1000861

Status: Confirmed

Status Updated: 2022-02-10 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-02-10
Asserted: 2022-02-10
Scope
Notes: KEV entry: Jenkins Stapler Web Framework Deserialization of Untrusted Data Vulnerability | Affected: Jenkins / Jenkins Stapler Web Framework | Description: A code execution vulnerability exists in the Stapler web framework used by Jenkins | Required action: Apply updates per vendor instructions. | Due date: 2022-08-10 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-1000861
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-502
Feed CISA Known Exploited Vulnerabilities Catalog
Product Jenkins Stapler Web Framework
Due Date 2022-08-10
Date Added 2022-02-10
Vendorproject Jenkins
Vulnerabilityname Jenkins Stapler Web Framework Deserialization of Untrusted Data Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 68b2c6bc-b72b-4ca4-9e9a-e85bf2e48655

Vulnerability ID: CVE-2018-1000861

Status: Confirmed

Status Updated: 2024-10-17 15:51 UTC

Exploited: Yes

Characteristics
Severity: 98.0
Timestamps
First Seen: 2024-10-17
Asserted: 2024-10-17
Last Seen: 2024-10-17
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Jenkins / Jenkins | Class: other-software | Severity: Critical (CVSS 9.8) | IoT: no | In CISA KEV: yes | Honeypot connections on 2023-02-27: 2
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 0
Vendor Jenkins
30D Avg 0
90D Avg 0
Product Jenkins
Cisa Kev yes
Connections 2
Observation Date 2023-02-27
Vulnerability Class CVSS
Vulnerability Score 9.8
Vulnerability Severity Critical
References
Created: 2026-06-30 09:23 UTC | Updated: 2026-06-30 15:34 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 149c98ac-0a07-4b00-b308-875dd4fca958

Vulnerability ID: CVE-2018-1000861

Status: Confirmed

Status Updated: 2022-02-10 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-02-10
Asserted: 2022-02-10
Scope
Notes: KEVIntel entry: A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in... | Affected: Jenkins / Jenkins | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in...
Vendor Jenkins
Product Jenkins
Added Date 2022-02-10T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:04 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.