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GHSA-9JWJ-XH8M-F4VF

Vulnerability from github – Published: 2026-09-30 12:35 – Updated: 2026-09-30 12:35

Details

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.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93995"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-30T10:17:17Z",
    "severity": "MODERATE"
  },
  "details": "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 \nMINA SSHD is a Java library for client-side and server-side SSH.\n\n\n\n\nComponent org.apache.sshd:sshd-git provides though class GitPgmCommandFactory a way to configure an Apache MINA SSHD server such \nthat authenticated SSH clients can remotely execute git commands via the JGit library \non git repositories stored on the server. In\u00a0CVE-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.\n\n\n\n\nThe fix done for\u00a0CVE-2026-58624 was insufficient as it missed removing the single-argument \"-o=file.zip\"\u00a0version of the command parameter\u00a0from the \"archive\" command.\n\n\n\n\nUsers are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue.",
  "id": "GHSA-9jwj-xh8m-f4vf",
  "modified": "2026-09-30T12:35:16Z",
  "published": "2026-09-30T12:35:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93995"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/k13ox2xlry38h9gh6rhmh1d9zs345clk"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-93995 (GCVE-0-2026-93995)

Vulnerability from cvelistv5 – Published: 2026-09-30 09:38 – Updated: 2026-09-30 14:30

Title

Apache MINA SSHD: Remote execution of JGit "archive -o=file.zip" can write file on the server

Summary

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.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-30 14:30 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

apache mitre root Scorecard

References

1 reference

URL	Tags
https://lists.apache.org/thread.html/k13ox2xlry38…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache MINA SSHD	Affected: 0 , < 2.20.0 (maven) Affected: 3.0.0-M1 , < 3.0.0-M6 (maven)

Credits

Ho1aAs <xxy010605@gmail.com>

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-9JWJ-XH8M-F4VF

CVE-2026-93995 (GCVE-0-2026-93995)

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