CVE-2026-107394: Indico: Incomplete Server-Side Request Forgery (SSRF) check

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-08 · updated 2026-10-09
Weakness: CWE-918

Description

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, the previous fix for CVE-2026-25738 did not cover an edge case, allowing an event organizer to submit a crafted URL that points to a prohibited local target but is accepted as valid by Indico. The organizer can read data returned by the target through affected Indico features. This issue is fixed in version 3.3.13.

Affected products

indico: before 3.3.13

References

https://github.com/indico/indico/commit/44540e70ab4e20a12f14ddba5218a33749a86736
https://github.com/indico/indico/pull/7573
https://github.com/indico/indico/releases/tag/v3.3.13
https://github.com/indico/indico/security/advisories/GHSA-2v95-h47v-g4x9

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