GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-84654 (GCVE-0-2026-84654)

Vulnerability from cvelistv5 – Published: 2026-09-02 15:40 – Updated: 2026-09-02 17:20
VLAI
Summary
In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, form data binding allows setting public static fields of the bound configuration object, allowing attackers who can submit configuration forms to modify public static fields of the configuration objects those forms are bound to, resulting in changes that apply globally to the Jenkins instance.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:20 UTC
CWE
  • CWE-472 - External Control of Assumed-Immutable Web Parameter
Assigner
References
Impacted products
Vendor Product Version CPE status
Jenkins Project Jenkins Unaffected: 2.580 , < * (maven)
Unaffected: 2.568.3 , < 2.568.* (maven)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-84654",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T17:20:15.417720Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-472",
                "description": "CWE-472 External Control of Assumed-Immutable Web Parameter",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-02T17:20:18.481Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "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"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, form data binding allows setting public static fields of the bound configuration object, allowing attackers who can submit configuration forms to modify public static fields of the configuration objects those forms are bound to, resulting in changes that apply globally to the Jenkins instance."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T15:40:44.871Z",
        "orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
        "shortName": "jenkins"
      },
      "references": [
        {
          "name": "Jenkins Security Advisory 2026-09-02",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3926"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
    "assignerShortName": "jenkins",
    "cveId": "CVE-2026-84654",
    "datePublished": "2026-09-02T15:40:44.871Z",
    "dateReserved": "2026-09-01T21:55:27.033Z",
    "dateUpdated": "2026-09-02T17:20:18.481Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-84654",
      "date": "2026-09-08",
      "epss": "0.00201",
      "percentile": "0.0999"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-84654\",\"sourceIdentifier\":\"jenkinsci-cert@googlegroups.com\",\"published\":\"2026-09-02T16:17:30.080\",\"lastModified\":\"2026-09-03T17:13:16.490\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, form data binding allows setting public static fields of the bound configuration object, allowing attackers who can submit configuration forms to modify public static fields of the configuration objects those forms are bound to, resulting in changes that apply globally to the Jenkins instance.\"}],\"affected\":[{\"source\":\"jenkinsci-cert@googlegroups.com\",\"affectedData\":[{\"vendor\":\"Jenkins Project\",\"product\":\"Jenkins\",\"defaultStatus\":\"affected\",\"versions\":[{\"version\":\"2.580\",\"lessThan\":\"*\",\"versionType\":\"maven\",\"status\":\"unaffected\"},{\"version\":\"2.568.3\",\"lessThan\":\"2.568.*\",\"versionType\":\"maven\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.5}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-02T17:20:15.417720Z\",\"id\":\"CVE-2026-84654\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-472\"}]}],\"references\":[{\"url\":\"https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3926\",\"source\":\"jenkinsci-cert@googlegroups.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.4, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-84654\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-02T17:20:15.417720Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-472\", \"description\": \"CWE-472 External Control of Assumed-Immutable Web Parameter\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-02T17:20:07.875Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Jenkins Project\", \"product\": \"Jenkins\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"2.580\", \"lessThan\": \"*\", \"versionType\": \"maven\"}, {\"status\": \"unaffected\", \"version\": \"2.568.3\", \"lessThan\": \"2.568.*\", \"versionType\": \"maven\"}], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3926\", \"name\": \"Jenkins Security Advisory 2026-09-02\", \"tags\": [\"vendor-advisory\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, form data binding allows setting public static fields of the bound configuration object, allowing attackers who can submit configuration forms to modify public static fields of the configuration objects those forms are bound to, resulting in changes that apply globally to the Jenkins instance.\"}], \"providerMetadata\": {\"orgId\": \"39769cd5-e6e2-4dc8-927e-97b3aa056f5b\", \"shortName\": \"jenkins\", \"dateUpdated\": \"2026-09-02T15:40:44.871Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-84654\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-02T17:20:18.481Z\", \"dateReserved\": \"2026-09-01T21:55:27.033Z\", \"assignerOrgId\": \"39769cd5-e6e2-4dc8-927e-97b3aa056f5b\", \"datePublished\": \"2026-09-02T15:40:44.871Z\", \"assignerShortName\": \"jenkins\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




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.