Medium severity5.3NVD Advisory· Published Nov 3, 2026· Updated Nov 3, 2026
CVE-2026-121562
CVE-2026-121562
Description
CTFd 3.1.0 before 3.8.7 contains an information disclosure vulnerability in the /api/v1/teams list endpoint that exposes non-public team custom field values. Unauthenticated attackers can paginate GET requests to collect hidden registration data such as emails, phone numbers, and student IDs when team mode and public visibility are enabled.
Affected products
1Patches
Vulnerability mechanics
References
6- blog.ctfd.io/ctfd-3-8-7/nvd
- github.com/CTFd/CTFd/blob/3.8.6/CTFd/api/v1/teams.pynvd
- github.com/CTFd/CTFd/blob/3.8.6/CTFd/schemas/teams.pynvd
- github.com/CTFd/CTFd/commit/122c224030224ca6a04d2928280055a84bbd4850nvd
- github.com/CTFd/CTFd/releases/tag/3.8.7nvd
- www.vulncheck.com/advisories/ctfd-3.1.0-before-3.8.7-information-disclosure-via-api-v1-teams-endpointnvd
News mentions
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