Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-03-20 09:15

Modified

2026-03-20 09:47

Summary

Details

Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins. This can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "jenkins",
        "purl": "pkg:bitnami/jenkins"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.541.3"
            },
            {
              "introduced": "2.542.0"
            },
            {
              "fixed": "2.555.0"
            }
          ],
          "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-2026-33001"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:maven:*:*"
    ],
    "severity": "High"
  },
  "details": "Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins.\nThis can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes.",
  "id": "BIT-jenkins-2026-33001",
  "modified": "2026-03-20T09:47:33.381Z",
  "published": "2026-03-20T09:15:10.344Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33001"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657"
    }
  ],
  "schema_version": "1.6.2"
}

CVE-2026-33001 (GCVE-0-2026-33001)

Vulnerability from cvelistv5 – Published: 2026-03-18 15:15 – Updated: 2026-03-19 12:58

Summary

Severity ?

8.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

jenkins

References

URL

Tags

https://www.jenkins.io/security/advisory/2026-03-…

vendor-advisory

Impacted products

	Vendor	Product	Version
	Jenkins Project	Jenkins	Unaffected: 2.555 , < * (maven) Unaffected: 2.541.3 , < 2.541.* (maven)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-33001",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-19T03:55:23.659873Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-59",
                "description": "CWE-59 Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-19T12:58:23.233Z",
          "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": "2.555",
              "versionType": "maven"
            },
            {
              "lessThan": "2.541.*",
              "status": "unaffected",
              "version": "2.541.3",
              "versionType": "maven"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins.\nThis can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-18T15:15:23.950Z",
        "orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
        "shortName": "jenkins"
      },
      "references": [
        {
          "name": "Jenkins Security Advisory 2026-03-18",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b",
    "assignerShortName": "jenkins",
    "cveId": "CVE-2026-33001",
    "datePublished": "2026-03-18T15:15:23.950Z",
    "dateReserved": "2026-03-17T15:04:07.615Z",
    "dateUpdated": "2026-03-19T12:58:23.233Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2026-33001 (GCVE-0-2026-33001)

Tags

Sightings

Nomenclature