CVE-2026-55828
qbee transport is a remote access transport protocol implementation. Prior to 1.26.25, the extractTar routine uses strictly lexical path val
CVSS
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Sin CVSS
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KEV
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Exploit Today
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0-100
Publicado: 15 sept 2026 · Última mod.: 15 sept 2026 · CWE-22 · CWE-59
Sin historial EPSS suficiente todavía.
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.