{"id":"CVE-2026-32768","aliases":["GHSA-mw24-f3xh-j3qv","GO-2026-4718"],"url":"https://o3.security/vulnerability/CVE-2026-32768","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```","published":"2026-03-20T05:30:07.431Z","modified":"2026-08-12T03:51:35.155424551Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Go","name":"github.com/ctfer-io/chall-manager/deploy","fixedVersion":"0.6.5"},{"ecosystem":"Go","name":"github.com/ctfer-io/chall-manager/sdk","fixedVersion":"0.6.5"}],"fix":{"url":"https://github.com/ctfer-io/chall-manager/commit/dc5ef27dfed2befef7f506ab8ca14d062b0d79c5","label":"ctfer-io/chall-manager@dc5ef27"},"references":[{"type":"WEB","url":"https://github.com/ctfer-io/chall-manager/releases/tag/v0.6.5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32768.json"},{"type":"ADVISORY","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":"FIX","url":"https://github.com/ctfer-io/chall-manager/commit/dc5ef27dfed2befef7f506ab8ca14d062b0d79c5"},{"type":"PACKAGE","url":"https://github.com/ctfer-io/chall-manager"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:35.155424551Z"}}