CVE-2026-108388 Indico legacy contribution export cache poisoning discloses restricted metadata
A low-privileged user can trick a privileged user into caching restricted metadata, allowing the attacker to read sensitive speaker and author information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-108388?
CVE-2026-108388 is a low-severity vulnerability in indico, published on 13 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2026-108388?
How do I fix CVE-2026-108388?
No fix has been published for CVE-2026-108388 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-108388 being exploited?
There is no known exploitation of CVE-2026-108388 in the wild and no public exploit code.
Sources
Also known as GHSA-p9vj-86c7-h7q3.