GitHub Advisoryadvisory · PyPI

GHSA-rfpp-2hgm-gp5v Indico has a missing access check in the event series management API

MEDIUM Published 2026-03-01 Modified 2026-03-01 Official page ↗
Aliases
CVE-2026-28352
Ecosystem
PyPI
Packages
indico
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-306
Reviewed
2026-03-01

Affected packages

• PyPI indico: < 3.3.11 → fixed in 3.3.11

Description

Impact The API endpoint used to manage event series is missing an access check, allowing unauthenticated/unauthorized access to this endpoint. The impact of this is limited to: • Getting the metadata (title, category chain, start/end date) for events in an existing series • Deleting an existing event series: This just removes the series metadata, ie (if enabled) the links between events in the same series and the lecture series number in the event title • Modifying an existing event series: Just like for deleting, it would only allow to toggle the metadata display. It could also be used to set an event title pattern for the series, but this is only used when cloning an event from that series. That this vulnerability does NOT allow unauthorized access to events (beyond the basic metadata mentioned above), nor any kind of tampering with user-visible data in events. Patches Developers should to update to Indico 3.3.11 as soon as possible. See the docs for instructions on how to update. Workarounds • Developers can configure their webserver to restrict access to the series management API endpoint For more information If there are any questions or comments about this advisory: • Open a thread in our forum • Email Indico privately at [email protected]

Related

Alias · CVE (1)

  • CVE-2026-28352 Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. vulnerability

Weakness · CWE (1)

  • CWE-306 Missing Authentication for Critical Functionality weakness

References