INSATutorat has an authorization bypass vulnerability in its /api/admin/* endpoints

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N · score source

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

Impact An authorization bypass vulnerability was discovered in the administration pages of the tutoring application. When a standard user (logged in but without administrator privileges) attempts to access a resource under /api/admin/, the system detects the error but does not block the request. As a result, sensitive data is still transmitted by the server in the request (GET), and modification actions such as campaign creation (POST) are executed successfully despite the FORBIDDEN error message. All /api/admin/ endpoints are affected. Remediation The issue was resolved by adding the missing c.Abort() instruction in the Gin authentication middleware (commit 15ae474). This instruction immediately interrupts the processing chain if the user is not an administrator. Workarounds There is no workaround other than applying the fix in the source code. Resources: Link to the fix commit: 15ae474 Credits INSATutorat thanks the Master 2 SSI 25-26 team at the University of Rouen Normandie for…

Published by the source

1 Mar 2026, 01:22 UTC

Last modified by the source

1 Mar 2026, 01:22 UTC

Source last checked

26 Oct 2026, 15:15 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-xfx2-prg5-jq3g

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# Patch Next advisory brief: GHSA-xfx2-prg5-jq3g

Advisory: INSATutorat has an authorization bypass vulnerability in its /api/admin/* endpoints
IDs: GHSA-xfx2-prg5-jq3g
Record: https://patchnext.com/advisories/ghsa-xfx2-prg5-jq3g (revision 1, source checked 26 Oct 2026, 15:15 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/romitou/insatutorat 0.0.0-20260226075457-15ae47425aed. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/romitou/insatutorat: affected < 0.0.0-20260226075457-15ae47425aed; fixed in 0.0.0-20260226075457-15ae47425aed

## Suggested inspection (read-only)
- Go github.com/romitou/insatutorat: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/romitou/insatutorat.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-xfx2-prg5-jq3g (GitHub-reviewed advisory GHSA-xfx2-prg5-jq3g lists affected ranges: Go github.com/romitou/insatutorat >=0 <0.0.0-20260226075457-15ae47425aed)

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