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    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 Java objects by accessing crafted URLs that were not intended to be invoked this way.

    Published:Dec 5, 2018
    Last Modified:Nov 5, 2025
    EPS:Dec 10, 2018
    EPSS Score:0.94485
    CVSS Score:9.8

    CISA Notification

    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.

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    Aug 10, 2022
    1494 days ago
    Alert Date
    Feb 10, 2022
    1675 days ago

    Affected Products

    Vendor
    Jenkins
    Product
    Jenkins
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Redhat
    Product
    Openshift Container Platform

    Exploits

    https://github.com/1NTheKut/CVE-2019-1003000_RCE-DETECTIONhttps://github.com/smokeintheshell/CVE-2018-1000861

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-138 Reflection Injection
    CAPEC-586 Object Injection

    Related CVEs

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    CVE-2026-84650 (CVSS 8.8) — In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserializatio…
    CVE-2026-84648 (CVSS 8.8) — In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the system log viewer does not escape log record metada…
    CVE-2026-84646 (CVSS 4.3) — In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other…
    CVE-2026-84645 (CVSS 8.8) — In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration …
    CVE-2026-70430 (CVSS 2.7) — Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not restrict the types of objects that can be instanti…
    CVE-2026-70429 (CVSS 6.5) — Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names in…
    CVE-2026-70428 (CVSS 4.3) — Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal …
    CVE-2026-70427 (CVSS 4.3) — Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empt…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High