Config File ProviderApplication · Jenkins
CVE-2023-40339
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 Config File Provider Plugin 952.va_544a_6234b_46 and earlier does not mask (i.e., replace with asterisks) credentials specified in configuration files when they're written to the build log.
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 Config File Provider Plugin versions 952.va_544a_6234b_46 and earlier contains a flaw where credentials embedded in configuration files are written in plaintext to build logs instead of being masked with asterisks. This allows anyone with access to build logs to view sensitive authentication credentials.
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
Config File ProviderApplication
<= 952.va_544a_6234b_46CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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 Config File Provider Plugin is installedIn Jenkins, go to Manage Jenkins > Manage Plugins > Installed tab, or check the plugins directory on the Jenkins controller filesystem. Look for 'Config File Provider' in the list of installed plugins.Affected if The plugin is not installed, then the vulnerability does not apply. If it is installed, proceed to version check.
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Check installed plugin versionIn Jenkins plugin manager, view the version column for Config File Provider Plugin. Alternatively, check the plugin's .hpi file in the plugins directory for the manifest containing the version number.Affected if If the version is 952.va_544a_6234b_46 or earlier, the plugin is vulnerable to plaintext credential disclosure in build logs.
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Identify configuration files with embedded credentialsReview Config File Provider configurations via Manage Jenkins > Manage Configuration Files. Look for any XML, properties, or configuration files that contain username/password pairs, API keys, tokens, or other credential data.Affected if If no credentials are stored in Config File Provider files, the flaw has no impact even on the vulnerable version.
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Inspect recent build logs for plaintext credentialsExamine recent build console output logs from builds that use config files. Search the logs for visible password strings, API tokens, or other credential values that should normally be masked with asterisks (****).Affected if If credentials appear as plaintext in build logs instead of being masked, the environment is definitively affected by this vulnerability.
Your environment is affected if the Config File Provider Plugin version is 952.va_544a_6234b_46 or earlier AND configuration files contain credentials AND those credentials appear unmasked in build logs.
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 · scopedUpgrade the Jenkins Config File Provider Plugin to a version that masks credentials in build logs. Restrict access to build logs pending the patch.
A version newer than 952.va_544a_6234b_46 (refer to Jenkins Security Advisory for the exact fixed version)
- Navigate to Manage Jenkins > Manage Plugins
- Go to the 'Installed' tab
- Locate the 'Config File Provider' plugin
- Check if the installed version is 952.va_544a_6234b_46 or earlier
- If vulnerable, click 'Update' to install the latest version
- Restart Jenkins if required after the update
- Verify the new version is installed and credentials are now masked in build logs
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Config File Provider
Scoped from the published advisory
- Consultation1.0 h
- Implementation1.0 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 $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-40339 — 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-2023-40339 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