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 as soon as possible. See the docs 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
- Email us privately at indico-team@cern.ch
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | indico | < 3.3.13 | 3.3.13 |
References
- https://github.com/indico/indico/security/advisories/GHSA-6p4f-j8j6-463q
- https://nvd.nist.gov/vuln/detail/CVE-2026-107395
- https://github.com/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038
- https://github.com/indico/indico
- https://github.com/indico/indico/releases/tag/v3.3.13
- https://pypi.org/project/indico
- https://github.com/advisories/GHSA-6p4f-j8j6-463q
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-862- Platform
- Python (PyPI)
- Package
indico- Disclosed
- 08.10.2026
- Updated
- 15.10.2026 18:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-4226 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-6p4f-j8j6-463q - CC BY 4.0
Vulnerability history: indico
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 16
- First → latest
- 10.2019 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 13
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 1
- 2025: 4
- 2026: 8
-
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