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CVE-2026-55828

qbee transport: Symlink-chain path traversal in tar extraction (one level outside destination) PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
qbee-io / transportaffected < 1.26.25

CWE

CWE-22, CWE-59

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.