---
id: CVE-2026-107395
title: >-
  Indico is an event management system that uses Flask-Multipass, a
  multi-backend authentication system for Flask
summary: >-
  Indico is an event management system that uses Flask-Multipass, a
  multi-backend authentication system for Flask. Prior to 3.3.13, an
  authenticated user can misuse the legacy session export API to retrieve
  details for a restricted session…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-862
vendor: indico
product: indico
affected:
  - indico < 3.3.13
patched:
  - indico 3.3.13
published: '2026-10-08'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T12:17:08.750'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107395'
references:
  - url: >-
      https://github.com/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038
    label: security-advisories@github.com
  - url: 'https://github.com/indico/indico/releases/tag/v3.3.13'
    label: security-advisories@github.com
  - url: 'https://github.com/indico/indico/security/advisories/GHSA-6p4f-j8j6-463q'
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107395'
  - url: 'https://github.com/advisories/GHSA-6p4f-j8j6-463q'
  - url: 'https://github.com/indico/indico'
tags:
  - nvd
  - ghsa
  - pip
  - osv
aliases:
  - GHSA-6p4f-j8j6-463q
ecosystem: pip
ingestedAt: '2026-10-08T21:07:56.434Z'
---

## Overview

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, an authenticated user can misuse the legacy session export API to retrieve details for a restricted session without access to that session, as long as the containing event is accessible. The missing access check can disclose session metadata such as the title, description, and conveners. This issue is fixed in version 3.3.13.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-107395)

Affected packages:

- `indico < 3.3.13`

Patched in:

- `indico 3.3.13`

Source: https://github.com/advisories/GHSA-6p4f-j8j6-463q