by Kastro
Paper/Archive/CVE-2026-32768

CVE-2026-32768

ctfer-io chall-manager — Chall-Manager's invalid NetworkPolicy enables a malicious actor to pivot into another namespace

EPSS 0.3%CVSS 9.9
critical.is priorityof 100
34
CVSS 9.9 (NVD)9.9 / 10 × 3029.7Not in CISA KEV+300.0EPSS percentile 22.2.222 × 204.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
chall-manager< 0.6.5–CNA

Scores by source

NVD9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub_M (CNA)7.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/ctfer-io/chall-manager/security/advisories/GHSA-mw24-f3xh-j3qvrefgithub.com/ctfer-io/chall-manager/commit/dc5ef27dfed2befef7f506ab8ca14d062b0d79c5refgithub.com/ctfer-io/chall-manager/releases/tag/v0.6.5