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AtomixApplication

CVE-2020-35210

MEDIUM · 6.5 CVSS v3.1 Published 2021-12-16
Fix available
A fix is available. Upgrade to after 3.1.5 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via a Raft session flooding attack using Raft OpenSessionRequest messages.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Atomix v3.1.5 contains a vulnerability where attackers can flood Raft sessions by sending excessive OpenSessionRequest messages, causing a denial of service. The Raft consensus protocol implementation lacks proper rate limiting or session quota controls on incoming session requests.

MitigationImplement rate limiting and session quota restrictions on Raft OpenSessionRequest messages, or upgrade to a patched version if available. Network segmentation can also limit attack surface.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
AtomixApplication
Affected:<= 3.1.5

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Atomix is running
    Check for Java processes running Atomix: `jps -l` or `ps aux | grep -i atomix`, or look for atomix*.jar files in the system
    Affected if Atomix process or JAR files are found on the system
  2. Check Atomix version
    Inspect the Atomix JAR manifest: `unzip -p atomix*.jar META-INF/MANIFEST.MF`, or check pom.xml/build files for version 3.1.5 or lower
    Affected if Installed version is 3.1.5 or any version lower than 3.1.5
  3. Verify Raft protocol is in use
    Look for Raft-related configuration in Atomix config files (e.g., partition groups with Raft protocol type in YAML or JSON config files)
    Affected if Raft-based partition groups are configured in Atomix settings
  4. Check for session rate limiting
    Inspect Atomix configuration files for any session rate-limit, max-sessions, or quota settings related to Raft OpenSessionRequest handling
    Affected if No rate limiting or session quota controls are configured for Raft sessions

User is affected if Atomix version 3.1.5 or lower is installed with Raft protocol enabled and no session rate limiting or quota controls are configured.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to a release after 3.1.5
Interim mitigation

Implement rate limiting and session quota restrictions on Raft OpenSessionRequest messages, or upgrade to a patched version if available. Network segmentation can also limit attack surface.

Fix this in Atomix Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-35210 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data