muCommander through 1.6.2 contains a path traversal vulnerability in UnpackJob that allows attackers to write files outside the destination folder by bypassing its ZipSlip check with unnormalized remote paths. Attackers can craft TAR or ZIP entries like ../../.ssh/authorized_keys that, when extracted to FTP or SFTP folders, create or overwrite files writable by the user's remote account.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
muCommander muCommander unaffected
Version Status Constraints
0 affected ≤ 1.6.2

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/mucommander/mucommander/blob/3bc2118e13681a8018b84a06f1c5fea4a3f940f7/mucommander-commons-file/src/main/java/com/mucommander/commons/file/AbstractFile.java#L1021-L1023 cve-icon cve-icon
https://github.com/mucommander/mucommander/blob/3bc2118e13681a8018b84a06f1c5fea4a3f940f7/mucommander-core/src/main/java/com/mucommander/job/impl/UnpackJob.java#L233-L256 cve-icon cve-icon
https://github.com/mucommander/mucommander/blob/3bc2118e13681a8018b84a06f1c5fea4a3f940f7/mucommander-protocol-sftp/src/main/java/com/mucommander/commons/file/protocol/sftp/SFTPFile.java#L586-L622 cve-icon cve-icon
https://github.com/mucommander/mucommander/releases/tag/1.6.2-1 cve-icon cve-icon
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ryH-CfoiMl cve-icon cve-icon
https://www.vulncheck.com/advisories/mucommander-through-1.6.2-path-traversal-via-archive-extraction-to-ftp-sftp cve-icon cve-icon
History

Tue, 13 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description muCommander through 1.6.2 contains a path traversal vulnerability in UnpackJob that allows attackers to write files outside the destination folder by bypassing its ZipSlip check with unnormalized remote paths. Attackers can craft TAR or ZIP entries like ../../.ssh/authorized_keys that, when extracted to FTP or SFTP folders, create or overwrite files writable by the user's remote account.
Title muCommander through 1.6.2 Path Traversal via Archive Extraction to FTP/SFTP
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 5.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-13T18:50:14.112Z

Reserved: 2026-10-13T17:59:59.200Z

Link: CVE-2026-110231

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:18:48.027

Modified: 2026-10-13T19:30:29.797

Link: CVE-2026-110231

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses