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

Vulnerability from cvelistv5 – Published: 2026-03-18 15:15 – Updated: 2026-06-30 12:07
VLAI
Summary
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.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
Jenkins Project Jenkins Unaffected: 2.555 , < * (maven)
Unaffected: 2.541.3 , < 2.541.* (maven)
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Red Hat OpenShift Developer Tools and Services 4.12     cpe:/a:redhat:ocp_tools:4.12::el8
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Red Hat OpenShift Developer Tools and Services 4.13     cpe:/a:redhat:ocp_tools:4.13::el8
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Red Hat OpenShift Developer Tools and Services 4.14     cpe:/a:redhat:ocp_tools:4.14::el8
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Red Hat OpenShift Developer Tools and Services 4.15     cpe:/a:redhat:ocp_tools:4.15::el8
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Red Hat OpenShift Developer Tools and Services 4.16     cpe:/a:redhat:ocp_tools:4.16::el9
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Red Hat OpenShift Developer Tools and Services 4.17     cpe:/a:redhat:ocp_tools:4.17::el9
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Red Hat OpenShift Developer Tools and Services 4.18     cpe:/a:redhat:ocp_tools:4.18::el9
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Red Hat OpenShift Developer Tools and Services 4.19     cpe:/a:redhat:ocp_tools:4.19::el9
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Red Hat OpenShift Developer Tools and Services 4.21     cpe:/a:redhat:ocp_tools:4.21::el9
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Red Hat OpenShift Developer Tools and Services 4.2     cpe:/a:redhat:ocp_tools:4.20::el9
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Red Hat Red Hat Developer Hub     cpe:/a:redhat:rhdh:1
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-33001\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-19T03:55:23.659873Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-59\", \"description\": \"CWE-59 Improper Link Resolution Before File Access (\u0027Link Following\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-18T15:50:18.837Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Jenkins Project\", \"product\": \"Jenkins\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"2.555\", \"lessThan\": \"*\", \"versionType\": \"maven\"}, {\"status\": \"unaffected\", \"version\": \"2.541.3\", \"lessThan\": \"2.541.*\", \"versionType\": \"maven\"}], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657\", \"name\": \"Jenkins Security Advisory 2026-03-18\", \"tags\": [\"vendor-advisory\"]}], \"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\": {\"orgId\": \"39769cd5-e6e2-4dc8-927e-97b3aa056f5b\", \"shortName\": \"jenkins\", \"dateUpdated\": \"2026-03-18T15:15:23.950Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-33001\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-19T12:58:23.233Z\", \"dateReserved\": \"2026-03-17T15:04:07.615Z\", \"assignerOrgId\": \"39769cd5-e6e2-4dc8-927e-97b3aa056f5b\", \"datePublished\": \"2026-03-18T15:15:23.950Z\", \"assignerShortName\": \"jenkins\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.