MatlabApplication · Jenkins
CVE-2023-49656
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 · uneditedJenkins MATLAB Plugin 2.11.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
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 · high confidenceThe Jenkins MATLAB Plugin versions 2.11.0 and earlier contains an XML parser that is not configured to prevent XML External Entity (XXE) attacks. This vulnerability allows an attacker to exploit the parser by crafting malicious XML input that references external entities, potentially leading to disclosure of sensitive files, Server-Side Request Forgery (SSRF), or Denial of Service (DoS) attacks.
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
MatlabApplication
< 2.11.1CVSS 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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Verify Jenkins MATLAB Plugin is installedNavigate to Manage Jenkins > Manage Plugins > Installed tab and search for 'MATLAB' in the filter, or check the $JENKINS_HOME/plugins directory for the matlab plugin folderAffected if The MATLAB Plugin is present in the plugin list or filesystem
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Determine installed MATLAB Plugin versionIn Jenkins UI, go to Manage Jenkins > Manage Plugins > Installed tab, find MATLAB Plugin, and note the version number displayed. Alternatively, check the version file in $JENKINS_HOME/plugins/matlab/WEB-INF/lib or the plugin's manifestAffected if The version shown is 2.11.0 or earlier
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Identify plugin usage in Jenkins jobsReview Jenkins job configurations that may use MATLAB-related build steps, particularly any that process XML-based input files, build scripts, or configuration files through the pluginAffected if Jobs are configured to use MATLAB plugin features that parse XML content without security validation
You are affected if the Jenkins MATLAB Plugin version is 2.11.0 or earlier and you use features that involve XML processing through the plugin.
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 · scoped2.11.1
Upgrade the Jenkins MATLAB Plugin to a version that properly secures the XML parser by disabling external entity processing and DTDs. If an update is unavailable, ensure the XML parser is configured with security settings that prevent XXE.
MATLAB Plugin version 2.11.1 or later
- 1. Log in to Jenkins as an administrator
- 2. Navigate to 'Manage Jenkins' > 'Manage Plugins'
- 3. Go to the 'Installed' tab
- 4. Locate the 'MATLAB' plugin in the list
- 5. If the plugin shows version 2.11.0 or earlier, check for updates or manually update to version 2.11.1
- 6. Restart Jenkins if required after the update
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Matlab
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-49656 — 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-2023-49656 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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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.
- 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