CVE-2026-5739
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 · uneditedA security flaw has been discovered in PowerJob 5.1.0/5.1.1/5.1.2. The affected element is the function GroovyEvaluator.evaluate of the file /openApi/addWorkflowNode of the component OpenAPI Endpoint. The manipulation of the argument nodeParams results in code injection. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.
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 confidenceA code injection vulnerability exists in PowerJob versions 5.1.0-5.1.2 within the GroovyEvaluator.evaluate function accessible via the /openApi/addWorkflowNode OpenAPI endpoint. The nodeParams parameter is not properly sanitized before evaluation, allowing remote attackers to inject and execute arbitrary Groovy code.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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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Confirm PowerJob installation and locate the applicationCheck for PowerJob deployment files, services, or containers. Common paths include /opt/powerjob, installation directories, or Docker containers named 'powerjob'. Identify the process or service running PowerJob.Affected if PowerJob is present in the environment
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Identify the PowerJob versionCheck the JAR/WAR file names, pom.xml if source is present, or the application's startup logs for a version string (e.g., powerjob-x.x.x). Alternatively, query the /actuator/version or /api/version endpoint if exposed.Affected if The installed version is unknown or within any vulnerable release range (compare against any published affected versions)
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Verify the OpenAPI endpoint is accessibleAttempt a GET request to http://<host>:<port>/openApi/addWorkflowNode or check the application routing configuration to confirm this endpoint exists and is routed to the PowerJob OpenAPI module.Affected if The /openApi/addWorkflowNode endpoint is accessible (no authentication or network restrictions found)
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Check if nodeParams parameter is processed by GroovyEvaluatorReview application logs, debug traces, or code references to 'GroovyEvaluator.evaluate' and confirm that it accepts and processes the nodeParams field from incoming requests to /openApi/addWorkflowNode.Affected if GroovyEvaluator processes nodeParams without visible sanitization or sandboxing in the request flow
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Verify lack of input validation or security sandbox on the endpointInspect the source code, configuration, or runtime behavior of /openApi/addWorkflowNode. Look for absence of input validation routines or Groovy security sandbox enforcement (e.g., GroovyShell.GROOVY_SAFE namespace restrictions).Affected if No input validation is applied to nodeParams and no Groovy security sandbox is configured
The environment is affected if PowerJob is running with the /openApi/addWorkflowNode endpoint exposed and the nodeParams argument is processed by GroovyEvaluator without sanitization or a security sandbox.
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 dataRestrict network access to OpenAPI endpoints, implement strict input validation/sanitization on nodeParams before Groovy evaluation, or deploy a WAF rule to block suspicious patterns until a vendor patch is available.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-5739 — 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-2026-5739 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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- Version or environment caveats, and links to real fixes
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