CVE-2026-32768 HIGH

CVE-2026-32768: Chall-Manager's invalid NetworkPolicy enables a malicious actor to pivot into another namespace

Vendor Ctfer-Io
Product chall-manager
Weakness CWE-284
Published March 20, 2026
Last update March 20, 2026

CVSS base score

7.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

What the vulnerability does

01Description

Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. In versions prior to 0.6.5, due to a miswritten NetworkPolicy, a malicious actor can pivot from an instance to any Pod out of the origin namespace. This breaks the security-by-default property expected as part of the deployment program, leading to a potential lateral movement. In the specific case of sdk/kubernetes.Kompose it does not isolate the instances. This issue has been fixed in version 0.6.5.

Key dates

02Disclosure timeline

March 20, 2026 CVE published
March 20, 2026 Record updated