Dead Man\'s SnitchApplication · Jenkins
CVE-2025-53666
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 Dead Man's Snitch Plugin 0.1 stores Dead Man's Snitch tokens unencrypted in job config.xml files on the Jenkins controller, where they can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.
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 Dead Man's Snitch Plugin version 0.1 stores API tokens in plaintext within job configuration XML files on the Jenkins controller. Any user with Item/Extended Read permission (a common permission for read-only access to jobs) or filesystem-level access to the Jenkins server can view these unencrypted tokens, leading to credential exposure.
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
Dead Man\'s SnitchApplication
= 0.1CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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 Dead Man's Snitch Plugin is installedNavigate to Manage Jenkins > Manage Plugins > Installed and search for 'Dead Man\'s Snitch' in the list of installed plugins, or run: jenkins-cli.jar who-am-i (if available) or check $JENKINS_HOME/plugins for the dead-mans-snitch directoryAffected if The plugin is installed and its version is 0.1
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Check the plugin versionInspect the plugin manifest: open $JENKINS_HOME/plugins/dead-mans-snitch/META-INF/MANIFEST.MF and look for the Implementation-Version attribute, or check the plugin directory for a .jpi or .hpi file and its version metadataAffected if The installed version is exactly 0.1 (no other versions are affected)
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Identify jobs using the pluginSearch job configuration XML files for theDead Man's Snitch configuration: grep -r 'dead.mans.snitch' $JENKINS_HOME/jobs/*/config.xml or examine individual job config.xml files looking for <deadMansSnitch> or similar XML elements that store the API tokenAffected if Job config.xml files contain a <deadMansSnitch> section with an API token field
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Verify plaintext token storageExamine the XML content within theDead Man's Snitch configuration section in affected job config.xml files; the token should appear as plaintext value between XML tags (not encrypted or masked)Affected if The token value in the XML is readable plaintext and not wrapped in <password> or <secret> encrypted tags, or shows as <apiToken>some-readable-string</apiToken>
You are affected if the Dead Man's Snitch plugin version 0.1 is installed and job configuration XML files contain plaintext API tokens in the plugin configuration section.
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.
From vendor dataUpgrade to a patched version of the Dead Man's Snitch Plugin that encrypts stored tokens, or remove/disable the plugin if no fix is available. Additionally, rotate any exposed Dead Man's Snitch API tokens immediately since they may have been compromised.
Fix this in Dead Man\'s Snitch
Scoped from the published advisory
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 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 $1,744.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-53666 — 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-2025-53666 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