CVE-2026-26418
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 · uneditedMissing authentication and authorization in the web API of Tata Consultancy Services Cognix Recon Client v3.0 allows remote attackers to access application functionality without restriction via the network.
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 Tata Consultancy Services Cognix Recon Client v3.0 web API lacks proper authentication and authorization controls, allowing unauthenticated remote attackers to invoke API endpoints and access application functionality without any credentials or privilege checks. This represents a classic IDOR/broken access control vulnerability exploitable over the network.
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= 3.0CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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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Identify installed TCS Cognix versionLocate the TCS Cognix Platform installation and check the exact version number (typically found in installation directories, about screens, or configuration files)Affected if The installed version is exactly 3.0 (version 3.0 matches the affected range)
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Confirm web API component is presentCheck if the Cognix Recon Client web API component is deployed and running (look for web service endpoints, API documentation, or service configuration files in the installation)Affected if The web API component is installed and accessible on the network
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Verify API endpoint accessibilityAttempt to reach the web API endpoints (typically accessible via HTTP/HTTPS on common web service ports) without providing any credentials or authentication tokensAffected if API endpoints respond without requiring any authentication credentials
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Test for broken access controlSend requests to various API endpoints (e.g., data retrieval, user management, or configuration endpoints) without any authorization headers or session tokensAffected if The API returns successful responses containing data or functional access without any privilege verification
A system is affected if it runs TCS Cognix Platform version 3.0 with an exposed web API that allows unauthenticated access to endpoints.
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 dataImplement robust authentication (e.g., token-based, OAuth) and role-based authorization checks on all web API endpoints to verify caller identity and permissions before granting access to sensitive functionality.
- Consultation8.0 h
- Implementation24.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $14,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-26418 — 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-2026-26418 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