CVE-2017-7474
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 · uneditedIt was found that the Keycloak Node.js adapter 2.5 - 3.0 did not handle invalid tokens correctly. An attacker could use this flaw to bypass authentication and gain access to restricted information, or to possibly conduct further attacks.
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 · moderate confidenceThe Keycloak Node.js adapter versions 2.5 through 3.0 failed to properly validate or reject invalid tokens, allowing attackers to bypass authentication checks and access restricted resources by presenting malformed or expired tokens that the adapter incorrectly accepted.
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= 2.5.0= 2.5.1= 2.5.2= 2.5.3= 2.5.4= 2.5.5= 2.5.6= 2.5.7= 3.0.0CVSS 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
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/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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Identify the Keycloak Node.js adapter packageRun 'npm list --depth=0' or check your package.json for dependencies related to Keycloak Node.js adapter (such as keycloak-connect or keycloak-nodejs-auth-utils)Affected if The package is installed and its version falls within the affected range
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Determine the installed versionRun 'npm list <package-name>' or inspect the node_modules/<package-name>/package.json file to find the exact version numberAffected if The installed version is 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5, 2.5.6, 2.5.7, or 3.0.0
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Verify token validation is in useReview your application code to confirm the Keycloak adapter is being used for protecting routes or resources with token-based authenticationAffected if The adapter handles authentication for your protected endpoints and the version is affected
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Check if public client access is enabledInspect your Keycloak client configuration to see if 'Public' access type is enabled, which relies on token validation by the adapterAffected if Your application uses the adapter with public client configuration and the version is affected
You are affected if your installed Keycloak Node.js adapter version is between 2.5.0 and 3.0.0 inclusive and your application relies on this adapter for token validation and authentication.
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 the Keycloak Node.js adapter to version 3.1.0 or later which contains the proper token validation fix, and validate that authentication flows function correctly after the update.
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-7474 — 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-2017-7474 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
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