CVE-2025-53633 - CVE House
Back to Database
Status published High CVE-2025-53633

Chall-Manager's scenario decoding process does not check for zip bombs

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-53633

Credits & Attribution

No credits recorded in the NVD database.

References

More from ctfer-io

View All →
CVE-2025-53634
Chall-Manager's HTTP Gateway have no header check timeout leading to potential slow loris attacks
High 8.7
CVE-2025-53632
Chall-Manager's scenario decoding process does not check for zip slips
High 8.8

Affected Vendor

Affected Software

chall-manager
Vulnerable Versions:
< 0.1.4

Timeline

Official Publish: July 10th, 2025
Last Modified: July 10th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-405

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.