CVE-2026-26416
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 · uneditedAn authorization bypass vulnerability in Tata Consultancy Services Cognix Recon Client v3.0 allows authenticated users to escalate privileges across role boundaries via crafted requests.
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 confidenceThis is an authorization bypass vulnerability in TCS Cognix Recon Client v3.0 where the application fails to properly enforce role-based access controls. Authenticated users can send crafted requests to bypass authorization checks and access functionality or data outside their intended role permissions, effectively escalating privileges across role boundaries.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 TCS Cognix Platform installation and versionLocate the TCS Cognix Platform installation directory and check the version information, typically found in product metadata, about dialog, or version file within the Cognix installation folderAffected if The installed version is exactly 3.0 ( TCS Cognix Platform = 3.0 )
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Verify Recon Client component is presentCheck if the Recon Client module/component is installed and enabled within the TCS Cognix Platform environmentAffected if The Recon Client component is installed and active in the environment
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Review role-based access control configurationExamine the RBAC configuration files or administrative console settings that define user roles and permissions within the Cognix PlatformAffected if Role definitions exist and the system relies on role-based permissions for access control
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Test for authorization boundary bypassUsing an authenticated user with a lower-privileged role, attempt to access functionality or data that should be restricted to higher-privileged roles by sending direct API requests or accessing protected endpointsAffected if Lower-privileged users can successfully access resources or functions intended for higher-privileged roles, indicating the authorization bypass is present
The environment is affected if TCS Cognix Platform version 3.0 is installed with the Recon Client component enabled and lower-privileged users can access higher-privileged functions or data.
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 server-side authorization validation that properly enforces role boundaries for all sensitive operations, combined with comprehensive testing to verify the fix prevents privilege escalation without breaking legitimate functionality.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-26416 — 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-2026-26416 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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