CVE-2019-10103
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 · uneditedJetBrains IntelliJ IDEA projects created using the Kotlin (JS Client/JVM Server) IDE Template were resolving Gradle artifacts using an http connection, potentially allowing an MITM attack. This issue, which was fixed in Kotlin plugin version 1.3.30, is similar to CVE-2019-10101.
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 confidenceIntelliJ IDEA projects created using the Kotlin (JS Client/JVM Server) IDE Template were resolving Gradle dependencies over unencrypted HTTP connections instead of HTTPS. This allowed potential MITM attackers to intercept and inject malicious code during the dependency resolution process.
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< 1.3.30CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:H/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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Check Kotlin plugin versionIn IntelliJ IDEA, go to Settings > Plugins > Installed, or check the Kotlin plugin version in the IDE about dialog. Alternatively, search for 'kotlin-stdlib' in the project's dependencies to see the version.Affected if The Kotlin plugin version is below 1.3.30
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Inspect build.gradle files for HTTP URLsSearch all build.gradle and build.gradle.kts files in the project for 'http://' URLs in repository definitions (repositories { ... }). Look specifically in the repositories block where dependencies are declared.Affected if Any repository URL uses http:// instead of https://
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Check settings.gradle for repository URLsOpen settings.gradle or settings.gradle.kts and examine all repository declarations, including any pluginManagement or dependencyResolutionManagement blocks.Affected if Repository URLs use http:// instead of https://
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Examine Gradle wrapper propertiesCheck gradle/wrapper/gradle-wrapper.properties for any HTTP URLs in the distributionUrl field.Affected if The distributionUrl uses http:// instead of https://
You are affected if the Kotlin plugin version is below 1.3.30 AND any Gradle repository URLs in build configuration files use unencrypted HTTP instead of HTTPS.
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 data1.3.30
Upgrade Kotlin plugin to version 1.3.30 or later, and ensure all Gradle repository URLs in build configurations use HTTPS instead of HTTP.
- Consultation1.0 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 $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-10103 — 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-2019-10103 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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