Bug 2543858 (CVE-2026-93995) - CVE-2026-93995 org.apache.sshd/sshd-git: Apache MINA SSHD: Arbitrary file write via improper Git archive argument validation
Summary: CVE-2026-93995 org.apache.sshd/sshd-git: Apache MINA SSHD: Arbitrary file wri...
Keywords:
Status: NEW
Alias: CVE-2026-93995
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-30 10:09 UTC by OSIDB Bzimport
Modified: 2026-09-30 14:12 UTC (History)
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Description OSIDB Bzimport 2026-09-30 10:09:31 UTC 
Improper input validation in sshd-git in Apache MINA SSHD, versions up to 2.19.0 and 3.0.0-M1 to 3.0.0-M5. Apache 
MINA SSHD is a Java library for client-side and server-side SSH.




Component org.apache.sshd:sshd-git provides though class GitPgmCommandFactory a way to configure an Apache MINA SSHD server such 
that authenticated SSH clients can remotely execute git commands via the JGit library 
on git repositories stored on the server. In CVE-2026-58624 this mechanism was restricted to only a few git commands, including "git archive" without "--output" or "-o" options such that the resulting archive would not be written on the server but instead sent back to the client over the SSH connection.




The fix done for CVE-2026-58624 was insufficient as it missed removing the single-argument "-o=file.zip" version of the command parameter from the "archive" command.




Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue.
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