Vulnerability in Ctfer-Io Chall-Manager
CVE-2026-32768
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (45.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Ctfer-Io Chall-Manager — versions < 0.6.5
Weakness classification (CWE)
References
- github.com/ctfer-io/chall-manager/security/advisories/GHSA-mw24-f3xh-j3qv (Mitigation, Vendor Advisory)
- github.com/ctfer-io/chall-manager/commit/dc5ef27dfed2befef7f506ab8ca14d062b0d79… (Patch)
- github.com/ctfer-io/chall-manager/releases/tag/v0.6.5 (Release Notes)
Frequently asked questions
- What is CVE-2026-32768?
- CVE-2026-32768 is a critical-severity vulnerability in Ctfer-Io Chall-Manager, classified under Improper Access Control. CVSS score: 9.9/10. Published 2026-03-20.
- How severe is CVE-2026-32768?
- Critical severity. CVSS v3 base score is 9.9 out of 10.