Indico: Missing access check in legacy session export API
### Impact A legacy API to retrieve session details could be misused to retrieve metadata (such as title, description and conveners) of a restricted session within without having access to that session, as long as the event itself was accessible. ### Patches You should to update to [Indico 3.3.13](https://github.com/indico/indico/releases/tag/v3.3.13) as soon as possible. See [the docs](https://docs.getindico.io/en/stable/installation/upgrade/) for instructions on how to update. ### Workarounds Restrict access to the event itself ### For more information If you have any questions or comments about this advisory: - Open a thread in [our forum](https://talk.getindico.io/) - Email us privately at [indico-team@cern.ch](mailto:indico-team@cern.ch)
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-107395US | —OT elevated | — | ||
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 sessio… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/advisories/GHSA-6p4f-j8j6-463qADVISORY
- https://github.com/indico/indicoPACKAGE
- https://github.com/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038WEB
- https://github.com/indico/indico/releases/tag/v3.3.13WEB
- https://github.com/indico/indico/security/advisories/GHSA-6p4f-j8j6-463qWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-107395ADVISORY
- https://pypi.org/project/indicoPACKAGE
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