cvedb.io
CVE-2025-53633
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2025-07-10T20:15:27.823 · Last modified 2026-06-17T09:38:36.657

Summary

Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. When decoding a scenario (i.e. a zip archive), the size of the decoded content is not checked, potentially leading to zip bombs decompression. Exploitation does not require authentication nor authorization, so anyone can exploit it. It should nonetheless not be exploitable as it is highly recommended to bury Chall-Manager deep within the infrastructure due to its large capabilities, so no users could reach the system. Patch has been implemented by commit 14042aa and shipped in v0.1.4.

Affected products

ctfer-io — chall-manager

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.