{"id":"CVE-2026-6823","summary":"HKUDS OpenHarness Insecure Default Remote Channel Allowlist","details":"HKUDS OpenHarness prior to PR #147 remediation contains an insecure default configuration vulnerability where remote channels inherit allow_from = [\"*\"] permitting arbitrary remote senders to pass admission checks. Attackers who can reach the configured channel can bypass access controls and reach host-backed agent runtimes, potentially leading to unauthorized file disclosure and read access through default-enabled read-only tools.","modified":"2026-08-04T11:49:33.095571055Z","published":"2026-04-21T20:36:45.867Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-276"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6823.json","unresolved_ranges":[{"extracted_events":[{"fixed":"PR #147"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6823.json"},{"type":"ADVISORY","url":"https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6823"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist"},{"type":"REPORT","url":"https://github.com/HKUDS/OpenHarness/pull/147"},{"type":"FIX","url":"https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hkuds/openharness","events":[{"introduced":"0"},{"fixed":"fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v0.1.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6823.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}]}