CVE-2022-23848
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 · uneditedIn Alluxio before 2.7.3, the logserver does not validate the input stream. NOTE: this is not the same as the CVE-2021-44228 Log4j vulnerability.
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 confidenceThe logserver component in Alluxio versions prior to 2.7.3 lacks proper input stream validation, allowing unauthenticated remote attackers to send malicious data through unvalidated input streams. Given the CVSS 9.8 rating, this vulnerability likely permits remote code execution or severe data injection via the logserver endpoint.
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< 2.7.3CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 checksWork through these to decide whether this CVE applies to you.
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Identify if Alluxio is installedCheck for running Alluxio processes or locate Alluxio installation directories on the systemAffected if Alluxio processes or installation directories are present on the system
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Determine the installed Alluxio versionUse the Alluxio version command, check version files in the installation directory, or query the Alluxio master process for its versionAffected if The installed version is lower than 2.7.3
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Verify the logserver component is enabledCheck Alluxio configuration files (e.g., alluxio-site.properties) for logserver settings, or inspect running processes for logserver-related Java processesAffected if The logserver component is enabled and running as part of the Alluxio deployment
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Check if logserver is network accessibleReview network configuration, firewall rules, or bind addresses to determine if the logserver port is exposed to untrusted networksAffected if The logserver listens on a network-accessible interface without authentication protection
A system is affected if it runs Alluxio version lower than 2.7.3 with the logserver component enabled and exposed to the network.
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scoped2.7.3
Upgrade Alluxio to version 2.7.3 or later. If immediate upgrade is not feasible, implement input validation and sanitization on the logserver to reject malformed or malicious input streams.
Alluxio 2.7.3 or later
- Review the Alluxio upgrade documentation for your deployment type
- Ensure you have a complete backup of your Alluxio metadata and configuration
- Stop the Alluxio cluster services gracefully
- Upgrade Alluxio binaries to version 2.7.3 or later
- Verify configuration files are compatible with the new version
- Start the Alluxio cluster and verify all services are running correctly
- Test that the logserver functionality is working properly after the upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,480.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-23848 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-23848 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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