{"id":"CVE-2026-55828","revision":"268f1fcbac7a43a5a795d31d00b8d3cc","records":[{"revision":"268f1fcbac7a43a5a795d31d00b8d3cc","observedAt":"2026-10-25T14:19:05.298+00:00","statement":{"source":"nvd","id":"CVE-2026-55828","aliases":[],"title":"qbee transport is a remote access transport protocol implementation. Prior to 1.26.25, the extractTar routine uses strictly lexical path validation that does not account for on-disk symlinks created earlier in the extraction process. A craf…","description":"qbee transport is a remote access transport protocol implementation. Prior to 1.26.25, the extractTar routine uses strictly lexical path validation that does not account for on-disk symlinks created earlier in the extraction process. A crafted tar archive can use a symlink chain to write or overwrite files one directory level above the intended extraction path. When qbee-agent performs the extraction with root privileges, this permits a root-privileged file write outside the intended destination. This issue is fixed in version 1.26.25.","state":0,"publishedAt":"2026-09-15T16:17:16.367+00:00","modifiedAt":"2026-09-30T17:51:56.193+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6,"severity":"MEDIUM"}],"references":["https://github.com/qbee-io/transport/commit/43947671ba9be8fb08b105f3539a112ee7a57ddc","https://github.com/qbee-io/transport/pull/19","https://github.com/qbee-io/transport/security/advisories/GHSA-f9m7-vc86-p6jj"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55828","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-22","CWE-59"],"productCriteria":[],"sourceDates":{"published":"2026-09-15T16:17:16.367","lastModified":"2026-09-30T17:51:56.193"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-55828","identifiers":["CVE-2026-55828"]},"retained":false,"historicalAffected":[]}],"coverage":[]}