{"schema_version":"1.9.0","id":"GHSA-mw24-f3xh-j3qv","published":"2026-03-16T20:45:34Z","modified":"2026-03-26T21:11:19.361258Z","aliases":["CVE-2026-32768","GO-2026-4718"],"summary":"Chall-Manager's invalid NetworkPolicy enables a malicious actor to pivot into another namespace","details":"### Impact\n\nDue to a mis-written NetworkPolicy, a malicious actor can pivot from an instance to any Pod out of the origin namespace.\nThis breaks the security-by-default property expected as part of the deployment program, leading to a potential lateral movement.\nIn the specific case of `sdk/kubernetes.Kompose` it does not isolate the instances.\n\n### Patch\n\nRemoving the `inter-ns` NetworkPolicy patches the vulnerability. If updates are not possible in production environments, we recommend to manually delete it and update as soon as possible.\n\n### Workaround\n\nGiven your context, delete the failing network policy that should be prefixed by `inter-ns-` in the target namespace.\nYou can use the following to delete all matching network policy. If unsure of the outcome, please do it manually.\n\n```bash\nfor ns in $(kubectl get ns -o jsonpath='{.items[*].metadata.name}' | tr ' ' '\\n' | grep '^cm-target-'); do\n  kubectl -n \"$ns\" get networkpolicy -o name \\\n  | grep '^networkpolicy.networking.k8s.io/inter-ns-' \\\n  | xargs -r kubectl -n \"$ns\" delete\ndone\n```","affected":[{"package":{"name":"github.com/ctfer-io/chall-manager/deploy","ecosystem":"Go","purl":"pkg:golang/github.com/ctfer-io/chall-manager/deploy"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.6.5"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-mw24-f3xh-j3qv/GHSA-mw24-f3xh-j3qv.json"}},{"package":{"name":"github.com/ctfer-io/chall-manager/sdk","ecosystem":"Go","purl":"pkg:golang/github.com/ctfer-io/chall-manager/sdk"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.6.5"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-mw24-f3xh-j3qv/GHSA-mw24-f3xh-j3qv.json"}}],"references":[{"type":"WEB","url":"https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-mw24-f3xh-j3qv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32768"},{"type":"WEB","url":"https://github.com/ctfer-io/chall-manager/commit/dc5ef27dfed2befef7f506ab8ca14d062b0d79c5"},{"type":"PACKAGE","url":"https://github.com/ctfer-io/chall-manager"},{"type":"WEB","url":"https://github.com/ctfer-io/chall-manager/releases/tag/v0.6.5"}],"database_specific":{"cwe_ids":["CWE-284"],"github_reviewed":true,"github_reviewed_at":"2026-03-16T20:45:34Z","nvd_published_at":"2026-03-20T06:16:09Z","severity":"HIGH"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H"}]}