{"id":"EM-20261105-QOE8","url":"https://cyber.eventmonitor.net/incident/EM-20261105-QOE8/musl-libc-vulnerability-cve-2026-107891/","type":"cve","title":"musl libc Vulnerability (CVE-2026-107891)","subtitle":"CVE-2026-107891","subject":"CVE-2026-107891","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-05T16:17:32.150Z","firstSignal":"2026-11-05T15:16:05.000Z","lastSignal":"2026-11-05T16:17:32.150Z","updated":"2026-11-06T12:16:45.734Z","revision":1,"life":[{"status":"Born","at":"2026-11-05T16:17:32.150Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-05T16:17:32.150Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-05T15:16:05.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-05T16:17:32.150Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261105-QOE8 created."}],"stages":[{"name":"Disclosed","at":"2026-11-05T16:17:32.150Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-05T16:17:32.150Z","detail":"CVSS 8.1"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-05T15:16:05.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-05T15:16:05.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-107891 (important)","text":"musl: musl: Arbitrary code execution via integer overflow in regcomp","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-107891.json"},{"at":"2026-11-05T16:17:32.150Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-107891 (CVSS 8.1)","text":"musl libc before 1.2.7, when an untrusted regular expression is used with regcomp, has multiple integer overflows, possibly leading to incorrect allocation sizes and out-of-bounds heap writes.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107891"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-05T16:17:32.150","score":8.1,"severity":"HIGH","desc":"musl libc before 1.2.7, when an untrusted regular expression is used with regcomp, has multiple integer overflows, possibly leading to incorrect allocation sizes and out-of-bounds heap writes.","product":"","seen":1793909142558},"kev":null,"epss":null,"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}