Vulnerability-Lookup

CVE-2026-84645 (GCVE-0-2026-84645)

Vulnerability from cvelistv5 – Published: 2026-09-02 15:40 – Updated: 2026-09-03 03:56

Summary

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted `config.xml` documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 00:00 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')
CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes

Assigner

jenkins CNA under the mitre root

CNA scorecard E 44/100 over 140 records in the last 180 days details

References

1 reference

URL	Tags
https://www.jenkins.io/security/advisory/2026-09-…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Jenkins Project	Jenkins	Unaffected: 2.580 , < * (maven) Unaffected: 2.568.3 , < 2.568.* (maven)	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "metrics": [
          {
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              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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              "version": "3.1"
            }
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                "id": "CVE-2026-84645",
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                  }
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              },
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                "description": "CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes",
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                "type": "CWE"
              }
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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      }
    ],
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        }
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        "shortName": "jenkins"
      },
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          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3972"
        }
      ]
    }
  },
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    "datePublished": "2026-09-02T15:40:39.425Z",
    "dateReserved": "2026-09-01T21:55:27.032Z",
    "dateUpdated": "2026-09-03T03:56:27.478Z",
    "state": "PUBLISHED"
  },
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                    "status": "unaffected",
                    "version": "2.568.3",
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            "source": "jenkinsci-cert@googlegroups.com"
          }
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          }
        ],
        "id": "CVE-2026-84645",
        "lastModified": "2026-09-11T21:15:29.510",
        "metrics": {
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                "attackComplexity": "LOW",
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                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
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              },
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              "impactScore": 5.9,
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              "type": "Secondary"
            }
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                "timestamp": "2026-09-02T00:00:00+00:00",
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        "published": "2026-09-02T16:17:29.193",
        "references": [
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          }
        ],
        "sourceIdentifier": "jenkinsci-cert@googlegroups.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
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            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
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    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-22T19:22:19+00:00",
      "cve": "CVE-2026-84645",
      "id": "CVE-2026-84645",
      "initial_release_date": "2026-09-02T15:40:39.425000+00:00",
      "product_status:fixed": "38",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "38",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "jenkins: Jenkins: Remote Code Execution via crafted configuration files",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-84645.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
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          {
            "metrics": [
              {
                "cvssV3_1": {
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              {
                "other": {
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                    "description": "CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes",
                    "lang": "en",
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                  }
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            ],
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              "dateUpdated": "2026-09-02T17:41:52.951Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
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            }
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}

bit-jenkins-2026-84645

Vulnerability from bitnami_vulndb

Published

2026-09-08 08:16

Modified

2026-09-12 09:08

Summary

Details

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted config.xml documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "jenkins",
        "purl": "pkg:bitnami/jenkins"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.568.3"
            },
            {
              "introduced": "2.569.0"
            },
            {
              "fixed": "2.580.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-84645"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:maven:*:*"
    ],
    "severity": "High"
  },
  "details": "In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted `config.xml` documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.",
  "id": "BIT-jenkins-2026-84645",
  "modified": "2026-09-12T09:08:08.194Z",
  "published": "2026-09-08T08:16:21.176Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84645"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3972"
    }
  ],
  "schema_version": "1.6.2"
}

FKIE_CVE-2026-84645

Vulnerability from fkie_nvd - Published: 2026-09-02 16:17 - Updated: 2026-09-11 21:15

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	jenkinsci-cert@googlegroups.com	https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3972	Vendor Advisory

Impacted products

	Vendor	Product	Version
	jenkins	jenkins	*
	jenkins	jenkins	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "Jenkins",
          "vendor": "Jenkins Project",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "2.580",
              "versionType": "maven"
            },
            {
              "lessThan": "2.568.*",
              "status": "unaffected",
              "version": "2.568.3",
              "versionType": "maven"
            }
          ]
        }
      ],
      "source": "jenkinsci-cert@googlegroups.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
              "matchCriteriaId": "6E99F179-13E6-4E37-B9C5-BF7D201D2903",
              "versionEndExcluding": "2.568.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "57886683-C109-4875-A3E6-CE9AD94086F8",
              "versionEndExcluding": "2.580",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted `config.xml` documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution."
    }
  ],
  "id": "CVE-2026-84645",
  "lastModified": "2026-09-11T21:15:29.510",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        },
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        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
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              "exploitation": "none"
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  },
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  "references": [
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    }
  ],
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  "vulnStatus": "Analyzed",
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        },
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          "value": "CWE-915"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-G5FG-FMCM-8XX6

Vulnerability from github – Published: 2026-09-02 18:32 – Updated: 2026-09-02 18:32

Details

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted config.xml documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-84645"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-02T16:17:29Z",
    "severity": "HIGH"
  },
  "details": "In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted `config.xml` documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.",
  "id": "GHSA-g5fg-fmcm-8xx6",
  "modified": "2026-09-02T18:32:12Z",
  "published": "2026-09-02T18:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84645"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3972"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

RHSA-2026:88149

Vulnerability from csaf_redhat - Published: 2026-10-22 08:45 - Updated: 2026-10-27 05:17

Summary

Red Hat Security Advisory: Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.13 security update.

Severity

Critical

Scope

45 vulnerabilities in this advisory, including CVE-2026-84645.

CVE-2026-84645

A flaw was found in Jenkins. This vulnerability allows a remote attacker to achieve remote code execution. By manipulating user-submitted configuration files, an attacker can exploit a deserialization weakness where specially crafted objects can process HTTP requests. This grants unauthorized access to the Script Console, leading to the execution of arbitrary code.

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 1 product Known not affected: 1 product

https://access.redhat.com/errata/RHSA-2026:88149

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RHSA-2026:88150

Vulnerability from csaf_redhat - Published: 2026-10-22 08:45 - Updated: 2026-10-27 05:17

Summary

Red Hat Security Advisory: Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.15 security update.

Severity

Critical

Scope

45 vulnerabilities in this advisory, including CVE-2026-84645.

CVE-2026-84645

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 4 products Known not affected: 4 products

https://access.redhat.com/errata/RHSA-2026:88150

Open the full advisory

RHSA-2026:88151

Vulnerability from csaf_redhat - Published: 2026-10-22 08:45 - Updated: 2026-10-27 05:17

Summary

Red Hat Security Advisory: Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.14 security update.

Severity

Critical

Scope

45 vulnerabilities in this advisory, including CVE-2026-84645.

CVE-2026-84645

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 4 products Known not affected: 4 products

https://access.redhat.com/errata/RHSA-2026:88151

Open the full advisory

RHSA-2026:88152

Vulnerability from csaf_redhat - Published: 2026-10-22 08:45 - Updated: 2026-10-27 05:17

Summary

Red Hat Security Advisory: Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.12 security update.

Severity

Critical

Scope

45 vulnerabilities in this advisory, including CVE-2026-84645.

CVE-2026-84645

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 1 product Known not affected: 1 product

https://access.redhat.com/errata/RHSA-2026:88152

Open the full advisory

RHSA-2026:88153

Vulnerability from csaf_redhat - Published: 2026-10-22 08:46 - Updated: 2026-10-27 05:17

Summary

Red Hat Security Advisory: Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.18 security update.

Severity

Critical

Scope

45 vulnerabilities in this advisory, including CVE-2026-84645.

CVE-2026-84645

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 4 products Known not affected: 4 products

https://access.redhat.com/errata/RHSA-2026:88153

Open the full advisory

RHSA-2026:88154

Vulnerability from csaf_redhat - Published: 2026-10-22 08:48 - Updated: 2026-10-27 05:17

Summary

Red Hat Security Advisory: Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.22 security update.

Severity

Critical

Scope

45 vulnerabilities in this advisory, including CVE-2026-84645.

CVE-2026-84645

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 4 products Known not affected: 4 products

https://access.redhat.com/errata/RHSA-2026:88154

Open the full advisory

RHSA-2026:88155

Vulnerability from csaf_redhat - Published: 2026-10-22 08:48 - Updated: 2026-10-27 05:17

Summary

Red Hat Security Advisory: Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.21 security update.

Severity

Critical

Scope

45 vulnerabilities in this advisory, including CVE-2026-84645.

CVE-2026-84645

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 4 products Known not affected: 4 products

https://access.redhat.com/errata/RHSA-2026:88155

Open the full advisory

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2026-84645 (GCVE-0-2026-84645)

Vulnerability from bitnami_vulndb

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour