CVE-2026-32768: Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player

Q: How do I fix CVE-2026-32768?

chall-manager: upgrade to 0.6.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-32768 being exploited?

CVE-2026-32768 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-32768 affect?

CVE-2026-32768 affects chall-manager. Severity is critical (CVSS 9.9). 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.

Q: How urgent is CVE-2026-32768?

Priority 40/100. Critical severity

This month

CRITICAL 9.9UPGRADE

CVE-2026-32768 is a critical-severity flaw (CVSS 9.9) affecting chall-manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.9 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-03-20
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: ctfer-io

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-20 06:16 UTCPublished CVE record published
2026-06-17 10:36 UTCUpdated Record last modified

ctfer-io chall-manager UPGRADE

Affected: < 0.6.5

Fixed in: 0.6.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chall-manager || rpm -q chall-manager || chall-manager --version

2. UPGRADE to 0.6.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chall-manager

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chall-manager

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-32768?

chall-manager: upgrade to 0.6.5. Exact commands for each OS are on this page.

Is CVE-2026-32768 being exploited?

CVE-2026-32768 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-32768 affect?

CVE-2026-32768 affects chall-manager. Severity is critical (CVSS 9.9). 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.

How urgent is CVE-2026-32768?

Priority 40/100. Critical severity

Software pages

Kubernetes vulnerabilities

Related CVEs

CVE-2025-53634 HIGH 7.5 UPGRADE Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player
CVE-2025-53633 CRITICAL 9.8 UPGRADE Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player
CVE-2025-53632 CRITICAL 9.1 UPGRADE Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player

References

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