CVE-2017-1000208
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 vulnerability in Swagger-Parser's (version <= 1.0.30) yaml parsing functionality results in arbitrary code being executed when a maliciously crafted yaml Open-API specification is parsed. This in particular, affects the 'generate' and 'validate' command in swagger-codegen (<= 2.2.2) and can lead to arbitrary code being executed when these commands are used on a well-crafted yaml specification.
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 confidenceThis is a YAML deserialization vulnerability in Swagger-Parser <= 1.0.30 that allows arbitrary code execution when parsing maliciously crafted Open-API YAML specifications. The vulnerability affects the 'generate' and 'validate' commands in swagger-codegen <= 2.2.2, enabling attackers to execute arbitrary code by providing a specially crafted YAML file.
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<= 2.2.2<= 1.0.30CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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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Check swagger-codegen versionRun `swagger-codegen --version` or `java -jar swagger-codegen-cli.jar version` to determine the installed version. If using a build tool, inspect pom.xml, build.gradle, or package.json for the swagger-codegen version entry.Affected if The version is 2.2.2 or lower.
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Check swagger-parser versionInspect your project's dependency file: for Maven check pom.xml for 'swagger-parser', for Gradle check build.gradle, or for npm check package.json. Look for the swagger-parser dependency and its version.Affected if The swagger-parser version is 1.0.30 or lower.
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Identify if generate or validate commands are usedReview any scripts, CI/CD pipelines, or build configurations that invoke swagger-codegen. Look for usage of the `generate` or `validate` commands that process YAML specification files.Affected if These commands process external or untrusted Open-API YAML files.
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Check for untrusted YAML processingAudit any automated flows or user-facing interfaces that accept Open-API YAML specifications and pass them to swagger-codegen for processing.Affected if The application processes YAML specifications from untrusted sources.
You are affected if swagger-codegen is version 2.2.2 or lower, or swagger-parser is version 1.0.30 or lower, AND your environment uses the generate or validate commands to process Open-API YAML files.
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 Swagger-Parser to version > 1.0.30 and swagger-codegen to version > 2.2.2 to remediate the arbitrary code execution vulnerability. Avoid processing untrusted YAML specifications until patches are applied.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2017-1000208 — 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-2017-1000208 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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