CVE-2026-93995: CWE-20 Improper Input Validation in Apache Software Foundation Apache MINA SSHD
CVE-2026-93995 is an improper input validation vulnerability in the Apache MINA SSHD library's sshd-git component. It affects versions up to 2.19.0 and from 3.0.0-M1 to 3.0.0-M5. The flaw relates to insufficient restriction of git commands executed remotely via SSH, specifically allowing a single-argument '-o=file.zip' option in the 'git archive' command that was not properly blocked. This could lead to unauthorized command execution impacts. The issue was addressed in versions 2.20.0 and 3.0.0-M6.
AI Analysis
Technical Summary
Apache MINA SSHD's sshd-git component allows authenticated SSH clients to execute git commands remotely on server repositories. A previous fix (CVE-2026-58624) restricted 'git archive' commands to prevent writing archives on the server, but missed the single-argument '-o=file.zip' form. This improper input validation (CWE-20) could allow unintended command execution or behavior. The vulnerability affects versions >=0 <2.20.0 and >=3.0.0-M1 <3.0.0-M6. Upgrading to 2.20.0 or 3.0.0-M6 mitigates the issue.
Potential Impact
The vulnerability allows authenticated SSH clients to bypass restrictions on the 'git archive' command, potentially enabling them to execute commands with unintended parameters. This can lead to integrity impacts on the server by executing unauthorized git commands. There is no reported confidentiality or availability impact. The CVSS 3.1 score is 6.5 (medium severity) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Mitigation Recommendations
Users should upgrade Apache MINA SSHD to version 2.20.0 or 3.0.0-M6 or later, where this improper input validation issue is fixed. No other mitigation is indicated or required according to the vendor advisory.
CVE-2026-93995: CWE-20 Improper Input Validation in Apache Software Foundation Apache MINA SSHD
Description
CVE-2026-93995 is an improper input validation vulnerability in the Apache MINA SSHD library's sshd-git component. It affects versions up to 2.19.0 and from 3.0.0-M1 to 3.0.0-M5. The flaw relates to insufficient restriction of git commands executed remotely via SSH, specifically allowing a single-argument '-o=file.zip' option in the 'git archive' command that was not properly blocked. This could lead to unauthorized command execution impacts. The issue was addressed in versions 2.20.0 and 3.0.0-M6.
CVSS v3.1
Score 6.5medium
Affected software
Apache Software Foundation
Apache MINA SSHD
pkg:maven/Apache Software Foundation/org.apache.sshd:sshd-gitRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Apache MINA SSHD's sshd-git component allows authenticated SSH clients to execute git commands remotely on server repositories. A previous fix (CVE-2026-58624) restricted 'git archive' commands to prevent writing archives on the server, but missed the single-argument '-o=file.zip' form. This improper input validation (CWE-20) could allow unintended command execution or behavior. The vulnerability affects versions >=0 <2.20.0 and >=3.0.0-M1 <3.0.0-M6. Upgrading to 2.20.0 or 3.0.0-M6 mitigates the issue.
Potential Impact
The vulnerability allows authenticated SSH clients to bypass restrictions on the 'git archive' command, potentially enabling them to execute commands with unintended parameters. This can lead to integrity impacts on the server by executing unauthorized git commands. There is no reported confidentiality or availability impact. The CVSS 3.1 score is 6.5 (medium severity) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Mitigation Recommendations
Users should upgrade Apache MINA SSHD to version 2.20.0 or 3.0.0-M6 or later, where this improper input validation issue is fixed. No other mitigation is indicated or required according to the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-09-19T12:55:41.059Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abce0dc0df196e1a9de7074
Added to database: 09/30/2026, 10:13:48 UTC
Last enriched: 09/30/2026, 10:27:36 UTC
Last updated: 09/30/2026, 10:44:22 UTC
Views: 5
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