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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 2
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-26 18:17
- First seenCVSS 5.6NVD modified 2026-10-13 19:30
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 7
- https://github.com/mucommander/mucommander/blob/3bc2118e13681a8018b84a06f1c5fea4a3f940f7/mucommander-commons-file/src/main/java/com/mucommander/commons/file/AbstractFile.java#L1021-L1023
- https://github.com/mucommander/mucommander/blob/3bc2118e13681a8018b84a06f1c5fea4a3f940f7/mucommander-core/src/main/java/com/mucommander/job/impl/UnpackJob.java#L233-L256
- https://github.com/mucommander/mucommander/blob/3bc2118e13681a8018b84a06f1c5fea4a3f940f7/mucommander-protocol-sftp/src/main/java/com/mucommander/commons/file/protocol/sftp/SFTPFile.java#L586-L622
- https://github.com/mucommander/mucommander/releases/tag/1.6.2-1
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ryH-CfoiMl
- https://www.vulncheck.com/advisories/mucommander-through-1.6.2-path-traversal-via-archive-extraction-to-ftp-sftp
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ryH-CfoiMl