{"id":"CVE-2023-45277","aliases":["GHSA-w4m2-qmh3-2g8f"],"url":"https://o3.security/vulnerability/CVE-2023-45277","summary":"Yamcs Path Traversal vulnerability","details":"Yamcs 5.8.6 is vulnerable to directory traversal (issue 1 of 2). The vulnerability is in the storage functionality of the API and allows one to escape the base directory of the buckets, freely navigate system directories, and read arbitrary files.","published":"2023-10-19T00:00:00Z","modified":"2026-08-07T11:31:26.482452404Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"org.yamcs:yamcs","fixedVersion":"5.8.7"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/yamcs/yamcs/compare/yamcs-5.8.6...yamcs-5.8.7"},{"type":"WEB","url":"https://www.linkedin.com/pulse/yamcs-vulnerability-assessment-visionspace-technologies"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45277.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45277"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:26.482452404Z"}}