Bug 2553028 (CVE-2026-110923) - CVE-2026-110923 openssh: openssh: sftp can write outside the destination directory from a server-supplied path
Summary: CVE-2026-110923 openssh: openssh: sftp can write outside the destination dire...
Keywords:
Status: NEW
Alias: CVE-2026-110923
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-15 03:22 UTC by OSIDB Bzimport
Modified: 2026-10-15 04:54 UTC (History)
18 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-15 03:22:43 UTC 
A flaw was found in OpenSSH sftp. During a copy, a server-supplied empty directory entry, a path made only of slashes, or a ".." basename is used as the local destination. The write runs as the user who started sftp, and the server must be one that user chose to copy from. This is an incomplete fix for CVE-2026-59995. That fix only stopped interactive_loop from building a command string. It does not rewrite these destination names. Reserve a new CVE. Do not reuse CVE-2026-59995.
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