GitHub Advisoryadvisory · Go

GHSA-ggmv-j932-q89q Chall-Manager's HTTP Gateway is vulnerable to DoS due to missing header timeout

HIGH Published 2025-07-10 Modified 2025-08-14 Official page ↗
Aliases
CVE-2025-53634
Ecosystem
Go
Packages
github.com/ctfer-io/chall-manager
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-770
Reviewed
2025-07-10

Affected packages

• Go github.com/ctfer-io/chall-manager: < 0.1.4 → fixed in 0.1.4

Description

Impact The HTTP Gateway processes headers, but with no timeout set. With a Slowloris attack, an attacker could cause Denial of Service (DoS). 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. Patches Patch has been implemented by commit `1385bd8` and shipped in `v0.1.4`. Workarounds No workaround exist. References N/A

Related

Alias · CVE (1)

  • CVE-2025-53634 Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. vulnerability

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References