HighCVE-2026-84675

    Jenkins: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CVE-2026-84675)

    Published Sources: BSI

    Share

    What is affected, what to do

    OS command injection vulnerability in Jenkins TICS Plugin 2025.1.1 and earlier allows attackers able to control build environment variable values to execute arbitrary commands on the agent running the build.

    Update Jenkins to version 2.568.3, jenkins to version 2.568.3.

    Affected
    • Jenkins TICS Plugin lte *..2025.1.1

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    7.4

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v3

    7.4

    CVSS v3

    Severity High on the scale from 0 to 10.

    Source: BSI

    1.2 %

    EPSS score

    Moderate — model estimates 1-10% exploitation likelihood.

    Source: FIRST EPSS, percentile 67.2

    Show all metrics
    Severity
    High
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    67.25 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    7.4 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    7.4
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    1.2 %
    Moderate — model estimates 1-10% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    67.2
    High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: none known · not automatable · Technical impact: partial
    Source: CISA Vulnrichment, as of 2 September 2026
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-78

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    OS command injection vulnerability in Jenkins TICS Plugin 2025.1.1 and earlier allows attackers able to control build environment variable values to execute arbitrary commands on the agent running the build.

    Source: BSI WID Portal

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    Jenkins ProjectJenkins
    • 2.421 – < 2.568.3
    • 2.447 – < 2.568.3
    • 2.569 – < 2.580
    • < 2.568.3
    • 2.568.3
    • 2.568.3
    • 2.580
    • 2.568.3
    Jenkins ProjectJenkins Allure Plugin
    • ≤ 2.35.2
    • —
    Jenkins ProjectJenkins Customizable Header Plugin
    • ≤ 295.v2544b_ca_19b_97
    • —
    Jenkins ProjectJenkins File Parameter Plugin
    • ≤ 425.v3fa_801681b_5e
    • —
    Jenkins ProjectJenkins GitLab Plugin
    • ≤ 1.9.16
    • —
    Jenkins ProjectJenkins Job Configuration History Plugin
    • ≤ 1367.vc8fa_b_15101dc
    • —
    Jenkins ProjectJenkins LDAP Plugin
    • ≤ 807.809.vd3a_4e5e4ec98
    • —
    Jenkins ProjectJenkins Microsoft Entra ID (previously Azure AD) Plugin
    • ≤ 710.v0b_ff8e9cc2d2
    • —
    Jenkins ProjectJenkins Parameterized Remote Trigger Plugin
    • ≤ 3.2.2
    • —
    Jenkins ProjectJenkins Performance Plugin
    • ≤ 1015.v09ca_52b_3370e
    • —
    Jenkins ProjectJenkins Pipeline: Build Step Plugin
    • ≤ 599.v4b_67ea_11b_152
    • —
    Jenkins ProjectJenkins Pipeline: Groovy Libraries Plugin
    • ≤ 798.v5cc688825312
    • —
    Jenkins ProjectJenkins SAML Plugin
    • ≤ 4.618.v441a_27fa_46d2
    • —
    Jenkins ProjectJenkins Script Security Plugin
    • ≤ 1412.v7737b_3405f86
    • —
    Jenkins ProjectJenkins SonarQube Scanner Plugin
    • ≤ 2.18.3
    • —
    Jenkins ProjectJenkins ThinBackup Plugin
    • ≤ 2.1.4
    • —
    Jenkins ProjectJenkins TICS Plugin
    • ≤ 2025.1.1
    • —
    Jenkins ProjectJenkins update-center2
    • ≤ 3.18.3
    • —
    Jenkins ProjectJenkins XebiaLabs XL Deploy Plugin
    • ≤ 26.1.0
    • —
    jenkinsjenkins
    • 2.421 – ≤ 2.579
    • 2.426.1 – ≤ 2.568.2
    • ≤ 2.568.2
    • < 2.568.3
    • ≤ 2.579
    • < 2.580
    • —
    • —
    • —
    • 2.568.3
    • —
    • 2.580
    jenkinsscript_security
    • ≤ 1412.v7737b_3405f86
    • —
    JenkinsJenkins
    • Plugins
    • < 2.580
    • <LTS 2.568.3
    • —
    • 2.580
    • —
    Distribution and container packages (3)

    Downstream packages (e.g. Bitnami, Debian, Ubuntu, Red Hat). Versions refer to the distribution, not the vendor.

    Distribution and container packages
    Affected versionsFixed in
    bitnamijenkins
    • 2.421.0
    • 2.447.0
    • 2.569.0
    • —
    • —
    • —

    Vendors and products

    Weakness classes (CWE)

    • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

      Base

      The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

      Entry at MITRE CWE-78

    References & sources

    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-84647web
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-84655web
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-84648web
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-84645web
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-84654web
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-84656web
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • NVD (NIST)vuln/detail/CVE-2026-84649web
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory
    • jenkins.ioJenkins Security Advisory 2026-09-02Vendor advisory

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Receivedgooglegroups.com

      Description added or changed

      Show 3 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Descriptionadded
      —
      OS command injection vulnerability in Jenkins TICS Plugin 2025.1.1 and earlier allows attackers able to control build environment variable values to execute arbitrary commands on the agent running the build.
      Affected versions (publisher)added
      —
      New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/84xxx/CVE-2026-84675.json">CVE-2026-84675</a>
      Referenceadded
      —
      https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3987

      Source identifier: jenkinsci-cert@googlegroups.com

    Linked CVEs

    Linked CVEs
    MediumCVE-2026-84677Jenkins update-center2: Cross-Site Scripting (XSS)5.4—
    MediumCVE-2026-84676Jenkins Parameterized Remote Trigger Plugin: security vulnerability4.3—
    HighCVE-2026-84675Jenkins TICS Plugin: OS Command Injection7.4—
    MediumCVE-2026-84674Jenkins XebiaLabs XL Deploy Plugin: security vulnerability5.4—
    HighCVE-2026-84673Jenkins Customizable Header Plugin: Cross-Site Scripting (XSS)8.8—
    HighCVE-2026-84672Jenkins Microsoft Entra ID (previously Azure AD) Plugin: security vulnerability8.8—
    HighCVE-2026-84671Jenkins File Parameter Plugin: Remote Code Execution8.8—
    HighCVE-2026-84670Jenkins Performance Plugin: Deserialization of Untrusted Data8.8—
    HighCVE-2026-84669Jenkins Allure Plugin: Path Traversal8.8—
    HighCVE-2026-84668Jenkins SAML Plugin: security vulnerability8.8—
    HighCVE-2026-84667Jenkins ThinBackup Plugin: security vulnerability7.1—
    MediumCVE-2026-84666Jenkins Job Configuration History Plugin: security vulnerability5.4—
    HighCVE-2026-84665Jenkins SonarQube Scanner Plugin: Cross-Site Scripting (XSS)8.0—
    MediumCVE-2026-84664Jenkins GitLab Plugin: security vulnerability5.4—
    MediumCVE-2026-84663Jenkins Pipeline: Cross-Site Request Forgery (CSRF)5.4—
    MediumCVE-2026-84662Jenkins LDAP Plugin: security vulnerability4.3—
    MediumCVE-2026-84661Jenkins Pipeline: security vulnerability5.4—
    MediumCVE-2026-84660Jenkins Pipeline: security vulnerability5.4—
    MediumCVE-2026-84659Jenkins Script Security Plugin: security vulnerability4.3—
    MediumCVE-2026-84658Jenkins Script Security Plugin: security vulnerability4.3—
    MediumCVE-2026-84657Jenkins: security vulnerability4.2—
    MediumCVE-2026-84656Jenkins: security vulnerability4.3—
    MediumCVE-2026-84655Jenkins: security vulnerability4.3—
    MediumCVE-2026-84654Jenkins: security vulnerability5.4—
    Show 9 more CVEs
    Linked CVEs
    LowCVE-2026-84653Jenkins: security vulnerability3.5—
    HighCVE-2026-84652Jenkins: security vulnerability7.3—
    MediumCVE-2026-84651Jenkins: security vulnerability6.3—
    HighCVE-2026-84650Jenkins: Deserialization of Untrusted Data8.8—
    HighCVE-2026-84649Jenkins: Cross-Site Request Forgery (CSRF)8.8—
    HighCVE-2026-84648Jenkins: Cross-Site Scripting (XSS)8.8—
    HighCVE-2026-84647Jenkins: security vulnerability8.8—
    MediumCVE-2026-84646Jenkins: Deserialization of Untrusted Data4.3—
    HighCVE-2026-84645Jenkins: Remote Code Execution8.8—
    Embed badge

    Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.

    Badge preview for CVE-2026-84675
    <a href="https://intel.neosec.eu/en/cve/CVE-2026-84675"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-84675.svg?lang=en" alt="CVE-2026-84675 – NEOSEC Intel" height="20"></a>