{"id":"CVE-2026-120399","aliases":["EUVD-2026-121145","GHSA-9f6q-cw24-v4xv"],"status":"published","title":"Flightctl-api: flightctl-remote-access: flightctl: unbounded tls handshake in conncontext can block accepting connections","description":"A flaw was found in flightctl. A TLS handshake is performed synchronously in the HTTP server’s connection-context callback without a deadline. A network-reachable unauthenticated client can stall the handshake and prevent the affected listener from accepting new connections.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00343,"percentile":0.28321,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1322"],"published":"2026-11-10T14:08:33Z","modified":"2026-11-10T15:33:28Z","products":[{"vendor":"red hat","product":"red hat edge manager 1"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-120399","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2564888","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120399"},{"url":"https://github.com/advisories/GHSA-9f6q-cw24-v4xv"}],"sources":{"cve":[{"id":"CVE-2026-120399","title":"Flightctl-api: flightctl-remote-access: flightctl: unbounded tls handshake in conncontext can block accepting connections","description":"A flaw was found in flightctl. A TLS handshake is performed synchronously in the HTTP server’s connection-context callback without a deadline. A network-reachable unauthenticated client can stall the handshake and prevent the affected listener from accepting new connections.","status":"published","published":"2026-11-10T14:08:33.545Z","modified":"2026-11-13T16:16:53.673Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-1322"],"updated_at":"2026-11-10T15:39:10.800702Z"}],"euvd":[{"id":"EUVD-2026-121145","description":"A flaw was found in flightctl. A TLS handshake is performed synchronously in the HTTP server’s connection-context callback without a deadline. A network-reachable unauthenticated client can stall the handshake and prevent the affected listener from accepting new connections.","status":"published","published":"2026-11-10T14:08:33Z","modified":"2026-11-13T16:16:53Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-10T17:21:45.335396Z"}],"ghsa":[{"id":"GHSA-9f6q-cw24-v4xv","title":"A flaw was found in flightctl. A TLS handshake is performed synchronously in the HTTP server’s...","description":"A flaw was found in flightctl. A TLS handshake is performed synchronously in the HTTP server’s connection-context callback without a deadline. A network-reachable unauthenticated client can stall the handshake and prevent the affected listener from accepting new connections.","status":"published","published":"2026-11-10T15:33:19Z","modified":"2026-11-10T15:33:28Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-1322"],"updated_at":"2026-11-10T15:55:01.855926Z"}],"nvd":[{"id":"CVE-2026-120399","description":"A flaw was found in flightctl. A TLS handshake is performed synchronously in the HTTP server’s connection-context callback without a deadline. A network-reachable unauthenticated client can stall the handshake and prevent the affected listener from accepting new connections.","status":"published","published":"2026-11-10T14:17:14.3Z","modified":"2026-11-13T17:17:18.71Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-1322"],"updated_at":"2026-11-13T19:37:10.640593Z"}]}}