Critical severity · published Mar 20, 2026
CVE-2026-32768
Chall-Manager's invalid NetworkPolicy enables a malicious actor to pivot into another namespace
9.9
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
chall-manager · ctfer-io
< 0.6.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32768
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32768
Patch
https://github.com/ctfer-io/chall-manager/commit/dc5ef27dfed2befef7f506ab8ca14d062b0d79c5
Release Notes
https://github.com/ctfer-io/chall-manager/releases/tag/v0.6.5
Mitigation
https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-mw24-f3xh-j3qv
More from chall-manager
9.8
CVE-2025-53633
Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player
9.1
CVE-2025-53632
Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player
7.5
CVE-2025-53634
Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player
