{"cve":"CVE-2023-43498","nvd":{"published":"2023-09-20T17:15:11.927","modified":"2026-06-17T06:25:36.580","status":"Modified","description":"In Jenkins 2.423 and earlier, LTS 2.414.1 and earlier, processing file uploads using MultipartFormDataParser creates temporary files in the default system temporary directory with the default permissions for newly created files, potentially allowing attackers with access to the Jenkins controller file system to read and write the files before they are used.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-377"],"references":["http://www.openwall.com/lists/oss-security/2023/09/20/5","https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3073","http://www.openwall.com/lists/oss-security/2023/09/20/5","https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3073"],"products":["jenkins:jenkins"],"source":"nvd","synced_at":"2026-10-19T21:39:24.235896374+00:00"},"epss":{"cve":"CVE-2023-43498","score":0.00966,"percentile":0.61726,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hq87-h4jg-vxfw","url":"https://osv.dev/vulnerability/GHSA-hq87-h4jg-vxfw","summary":"Jenkins temporary uploaded file created with insecure permissions","modified":"2024-09-25T18:01:15.934458Z","packages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":[">=2.50 <2.414.2"],"fixed":["2.414.2"]},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":[">=2.415 <2.424"],"fixed":["2.424"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}