CVE-2026-55828

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Source
https://cve.org/CVERecord?id=CVE-2026-55828
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-55828.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-55828
Aliases
Downstream
Related
Published
2026-09-15T15:14:52Z
Modified
2026-09-17T03:47:21Z
Severity
  • 6.0 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
qbee transport: Symlink-chain path traversal in tar extraction (one level outside destination)
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22",
        "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55828.json"
}
References

Affected packages

Git / github.com/qbee-io/transport

Affected ranges

Type
GIT
Repo
https://github.com/qbee-io/transport
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
43947671ba9be8fb08b105f3539a112ee7a57ddc
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.26.25"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.24.27
v1.24.33
v1.24.4
v1.24.4-1
v1.24.5
v1.24.5-pre0
v1.24.5-pre1
v1.24.5-pre2
v1.24.5-pre3
v1.24.5-pre4
v1.24.6
v1.24.7
v1.24.8
v1.25.12
v1.25.28
v1.26.16
v1.26.18

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-55828.json"