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3.5

Indico event system may expose speaker emails via export cache

CVE-2026-108388 · published 5 days ago
Summary

In Indico versions 3.3.3 through 3.3.13, a low‑privilege user can trick a privileged user into creating a contribution export that stores speaker or author email addresses in a shared cache. Those cached details can then be retrieved by the low‑privilege user, revealing private contact information. Upgrade to Indico 3.3.14 or later to stop this behavior.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
indico indico >= 3.3.3, < 3.3.14
Original advisory text
Indico legacy contribution export cache poisoning discloses restricted metadata
Indico is a feature-rich event management system. Indico 3.3.3 through 3.3.13 incorrectly uses the ambient web-session user instead of the user supplied to Contribution.can_manage when checking inherited event contribution-management permission. A low-privileged user can induce a privileged user to request a crafted legacy contribution export and cause speaker or author email addresses and contribution access-control entries to be stored in an API cache entry retrievable with less privilege. This issue was fixed in Indico 3.3.14.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
3.5 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-863Incorrect Authorization
Timeline
Published13 Oct 2026
Updated16 Oct 2026
First seen13 Oct 2026
Sources
CVE-2026-108388 · NVD
CVE-2026-108388 · MITRE
CVE-2026-108388 · OSV
GHSA-p9vj-86c7-h7q3 · GHSA
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