{"id":"EM-20261104-G95W","url":"https://cyber.eventmonitor.net/incident/EM-20261104-G95W/telepresence-vulnerability-cve-2026-102339/","type":"cve","title":"Telepresence Vulnerability (CVE-2026-102339)","subtitle":"CVE-2026-102339","subject":"CVE-2026-102339","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-04T21:17:40.500Z","firstSignal":"2026-11-04T20:35:34.000Z","lastSignal":"2026-11-04T21:17:40.500Z","updated":"2026-11-06T12:16:45.734Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T21:17:40.500Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T21:17:40.500Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-04T20:35:34.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T21:17:40.500Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-G95W created."}],"stages":[{"name":"Disclosed","at":"2026-11-04T21:17:40.500Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T21:17:40.500Z","detail":"CVSS 8.2 · EPSS 0.3%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-04T20:35:34.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-04T20:35:34.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-102339 (important)","text":"github.com/telepresenceio/telepresence: Telepresence: Unauthorized network routing access via missing session ownership verification","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-102339.json"},{"at":"2026-11-04T21:17:40.500Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-102339 (CVSS 8.2)","text":"Telepresence enables local development against a remote Kubernetes or OpenShift cluster. Prior to 2.31.0, the Traffic Manager Tunnel gRPC streaming endpoint parses a session ID from the first bytes of a caller-controlled message in pkg/tunnel/message.go and passes it to state.Tunnel without verifying that the caller owns the active session. An attacker who obtains a valid active session ID through log leakage, cluster-internal channels, or the unauthenticated ArriveAsClient endpoint can attach a routed tunnel to that session and gain its network routing capabilities. UUID4 session IDs make…","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102339"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T21:17:40.500","score":8.2,"severity":"HIGH","desc":"Telepresence enables local development against a remote Kubernetes or OpenShift cluster. Prior to 2.31.0, the Traffic Manager Tunnel gRPC streaming endpoint parses a session ID from the first bytes of a caller-controlled message in pkg/tunnel/message.go and passes it to state.Tunnel without…","product":"","seen":1793837141981},"kev":null,"epss":{"epss":0.00287,"pct":0.2133,"at":1793967405734},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}