Authenticated data disclosure via Base64 parameter tampering
Published Apr 29, 2026 · Updated Apr 29, 2026
Authorization bypass in C-DAC e-Sushrut HMIS previous versions allows remote authenticated users to read sensitive data via URL parameters. The application treats reversible Base64 encoding as protection and accepts decoded, user-controlled resource identifiers without adequate authorization checks. An authenticated account and network access to an affected request are required; the documented impact is sensitive-data disclosure only.
Summary
What happened
Authorization bypass in C-DAC e-Sushrut HMIS previous versions allows remote authenticated users to read sensitive data via URL parameters. The application treats reversible Base64 encoding as protection and accepts decoded, user-controlled resource identifiers without adequate authorization checks. An authenticated account and network access to an affected request are required; the documented impact is sensitive-data disclosure only.
The record
- CVE
- CVE-2026-42517
- Published
- Apr 29, 2026
- Updated
- Apr 29, 2026
- Vendor
- Centre for Development of Advanced Computing (C-DAC)
- Product
- e-Sushrut Hospital Management Information System
- Classifications
- CWE-639
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 29, 2026CVE publishedPublication date reported by the CVE source.
- Apr 29, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=Previous versions
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
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Your stack
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