CVE-2026-26418
Published: 05 March 2026
Summary
CVE-2026-26418 is a high-severity Improper Access Control (CWE-284) vulnerability in Tcs Cognix Platform. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 33.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Missing authentication/authorization on a network-accessible web API directly enables remote exploitation of a public-facing application (T1190) to access protected functionality and exfiltrate sensitive data without credentials or user interaction.
NVD Description
Missing 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.
Deeper analysisAI
CVE-2026-26418 is a vulnerability characterized by missing authentication and authorization in the web API of Tata Consultancy Services (TCS) Cognix Recon Client version 3.0. This improper access control issue, mapped to CWE-284, enables unrestricted access to application functionality. Published on 2026-03-05, it carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), highlighting its network accessibility, low complexity, and potential for high confidentiality impact.
Remote attackers require no privileges or user interaction to exploit this vulnerability over the network. Any unauthenticated adversary with connectivity to the web API can directly access protected application features, potentially exposing sensitive data due to the high confidentiality impact rating, while integrity and availability remain unaffected.
Mitigation guidance and further details are available in the referenced advisories, including the dedicated CVE repository at https://github.com/aksalsalimi/CVE-2026-26418, the broader Cognix Recon Client security advisories at https://github.com/aksalsalimi/cognix-recon-client-security-advisories, and TCS product information at https://www.tcs.com/what-we-do/services/cognitive-business-operations/solution/cognix-platform-business-agility-enhanced-cx.
Details
- CWE(s)