Bug 2521828 - CVE-2026-56452 apache-sshd: Apache MINA SSHD: Path traversal via SCP allows arbitrary file write [fedora-all]
Summary: CVE-2026-56452 apache-sshd: Apache MINA SSHD: Path traversal via SCP allows a...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: apache-sshd
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Mat Booth
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["cb1b1649-050a-407e-a090-1...
Depends On:
Blocks: CVE-2026-56452
TreeView+ depends on / blocked
 
Reported: 2026-08-24 12:03 UTC by Vladimir Vasilev
Modified: 2026-08-24 12:03 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Vladimir Vasilev 2026-08-24 12:03:40 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Path traversal in the sshd-scp component of Apache MINA SSHD. Apache MINA SSHD is a Java library for client-side and server-side SSH.




The implementation of receiving files or directories via SCP did not validate filenames in SCP "C" or "D" commands. A malicious sender could send filenames containing paths, resulting in files to be written in attacker-controlled places.




The issue affects only

  *  applications that use no longer supported Apache MINA SSHD versions < 2.0.0 and use the SCP functions to receive files,
  *  or applications using sshd-scp in Apache MINA SSHD >= 2.0.0 to receive files.




Applications using Apache MINA SSHD >= 2.0.0 not using sshd-scp are not affected.




The issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions.


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