{"id":"EM-20261104-D99F","url":"https://cyber.eventmonitor.net/incident/EM-20261104-D99F/apt-vulnerability-cve-2026-109518/","type":"cve","title":"apt Vulnerability (CVE-2026-109518)","subtitle":"CVE-2026-109518","subject":"CVE-2026-109518","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-04T16:17:33.010Z","firstSignal":"2026-11-04T15:49:02.000Z","lastSignal":"2026-11-04T16:17:33.010Z","updated":"2026-11-07T00:59:45.971Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T16:17:33.010Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T16:17:33.010Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-04T15:49:02.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T16:17:33.010Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-D99F created."}],"stages":[{"name":"Disclosed","at":"2026-11-04T16:17:33.010Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T16:17:33.010Z","detail":"CVSS 7.7 · EPSS 0.9%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-04T15:49:02.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-04T15:49:02.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-109518 (important)","text":"apt: apt: Remote code execution via hard link reuse during package download retries","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-109518.json"},{"at":"2026-11-04T16:17:33.010Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-109518 (CVSS 7.7)","text":"On Debian, Ubuntu, and derivative Linux distributions, an on-path attacker who can manipulate the HTTP traffic (including a malicious mirror or proxy) between an APT client and an archive server triggered by a package install can trick the client into installing an attacker-controlled unverified package and achieve remote code execution with root privileges.\n\n\n\nThe vulnerability is caused by the reuse of hard links and requires the client to follow redirects and retry the download of package files. It requires the client to have a non-zero Acquire::Retries configuration setting; the value 3…","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109518"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T16:17:33.010","score":7.7,"severity":"HIGH","desc":"On Debian, Ubuntu, and derivative Linux distributions, an on-path attacker who can manipulate the HTTP traffic (including a malicious mirror or proxy) between an APT client and an archive server triggered by a package install can trick the client into installing an attacker-controlled unverified…","product":"","seen":1793865248488},"kev":null,"epss":{"epss":0.00928,"pct":0.60716,"at":1794013185971},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}