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CVE-2026-55828 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/qbee-io/transport/commit/43947671ba9be8fb08b105f3539a112ee7a57ddc	[email protected]
https://github.com/qbee-io/transport/pull/19	[email protected]
https://github.com/qbee-io/transport/security/advisories/GHSA-f9m7-vc86-p6jj	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-22	Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')	[email protected]
CWE-59	Improper Link Resolution Before File Access ('Link Following')	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 15, 2026	CVE Modified	CISA-ADP
Sep 15, 2026	New CVE Received	[email protected]