What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-20 · updated 2026-06-17
• Weakness: CWE-284

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.

Affected products

• ctfer-io chall-manager: before 0.6.5 — fixed in 0.6.5

How to fix

Upgrade to a fixed version: ctfer-io chall-manager 0.6.5. Check the vendor advisory for mitigations.

References

• https://github.com/ctfer-io/chall-manager/commit/dc5ef27dfed2befef7f506ab8ca14d062b0d79c5
• https://github.com/ctfer-io/chall-manager/releases/tag/v0.6.5
• https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-mw24-f3xh-j3qv

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