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GHSA-9279-7hph-r3xw

HIGH

GHSA-9279-7hph-r3xw is a high-severity (CVSS 7.5) CWE-772 vulnerability in org.apache.sshd:sshd-mina. O3 Security confirms whether GHSA-9279-7hph-r3xw is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Buffer Overflow in Apache Mina SSHD

Also known asCVE-2021-30129
Published
Aug 2, 2021
Updated
Nov 8, 2023
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed

Real-World Exposure

2 pkgs affected
org.apache.sshd:sshd-minaorg.apache.sshd:sshd-core

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

A vulnerability in sshd-core of Apache Mina SSHD allows an attacker to overflow the server causing an OutOfMemory error. This issue affects the SFTP and port forwarding features of Apache Mina SSHD version 2.0.0 and later versions. It was addressed in Apache Mina SSHD 2.7.0

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.apache.sshd:sshd-mina2.0.0&&< 2.7.02.7.0
Mavenorg.apache.sshd:sshd-core2.0.0&&< 2.7.02.7.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.sshd:sshd-mina. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update org.apache.sshd:sshd-mina to 2.7.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9279-7hph-r3xw is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-9279-7hph-r3xw is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-9279-7hph-r3xw. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A vulnerability in sshd-core of Apache Mina SSHD allows an attacker to overflow the server causing an OutOfMemory error. This issue affects the SFTP and port forwarding features of Apache Mina SSHD version 2.0.0 and later versions. It was addressed in Apache Mina SSHD 2.7.0
O3 Security · Impact-Aware SCA

Is GHSA-9279-7hph-r3xw in your dependencies?

O3 detects GHSA-9279-7hph-r3xw across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.