{"id":"CVE-2026-32769","summary":"Fullchain's Invalid NetworkPolicy enables a malicious actor to pivot into another namespace","details":"Fullchain is an umbrella project for deploying a ready-to-use CTF platform. In versions prior to  0.1.1, due to a mis-written NetworkPolicy, a malicious actor can pivot from a subverted application to any Pod out of the origin namespace. The flawed inter-ns NetworkPolicy breaks the security-by-default property expected as part of the deployment program, leading to a potential lateral movement. This issue has been fixed in version 0.1.1. To workaround, delete the failing network policy that should be prefixed by inter-ns- in the target namespace.","aliases":["GHSA-hxm7-9q36-c77f","GO-2026-4715"],"modified":"2026-04-02T13:26:34.426977Z","published":"2026-03-20T00:18:55.991Z","related":["SUSE-SU-2026:1135-1"],"database_specific":{"cwe_ids":["CWE-284"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32769.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/ctfer-io/fullchain/releases/tag/v0.1.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32769.json"},{"type":"ADVISORY","url":"https://github.com/ctfer-io/fullchain/security/advisories/GHSA-hxm7-9q36-c77f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32769"},{"type":"FIX","url":"https://github.com/ctfer-io/fullchain/commit/dbcb90178bcb07a3f5a1efa4c6350f3a6ce34f51"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ctfer-io/fullchain","events":[{"introduced":"0"},{"fixed":"dbcb90178bcb07a3f5a1efa4c6350f3a6ce34f51"}]},{"type":"GIT","repo":"https://github.com/ctfer-io/fullchain","events":[{"introduced":"0"},{"fixed":"dbcb90178bcb07a3f5a1efa4c6350f3a6ce34f51"}]}],"versions":["v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32769.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H"}]}