Vulnerability Monitor

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CVE-2025-53633

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.

Published

2025-07-10T20:15:27.823

Last Modified

2025-08-14T20:44:46.470

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

Weaknesses

Type: Primary
CWE-405

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ctfer-io	chall-manager	< 0.1.4	Yes

References

https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd Patch ([email protected])
https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4 Release Notes ([email protected])
https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-r7fm-3pqm-ww5w Vendor Advisory ([email protected])