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Indico: Missing access check in legacy session export API

Moderate severity GitHub Reviewed Published Aug 25, 2026 in indico/indico • Updated Oct 8, 2026

Package

pip indico (pip)

Affected versions

< 3.3.13

Patched versions

3.3.13

Description

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:

References

@ThiefMaster ThiefMaster published to indico/indico Aug 25, 2026
Published by the National Vulnerability Database Oct 8, 2026
Published to the GitHub Advisory Database Oct 8, 2026
Reviewed Oct 8, 2026
Last updated Oct 8, 2026

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS score

Weaknesses

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Learn more on MITRE.

CVE ID

CVE-2026-107395

GHSA ID

GHSA-6p4f-j8j6-463q

Source code

Credits

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