{"id":"EM-20261104-FUFI","url":"https://cyber.eventmonitor.net/incident/EM-20261104-FUFI/vulnerability-cve-2026-106554/","type":"cve","title":"Vulnerability (CVE-2026-106554)","subtitle":"CVE-2026-106554","subject":"CVE-2026-106554","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-04T16:17:32.640Z","firstSignal":"2026-11-04T16:14:05.000Z","lastSignal":"2026-11-04T16:17:32.640Z","updated":"2026-11-10T14:04:51.773Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T16:17:32.640Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T16:17:32.640Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-04T16:14:05.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T16:17:32.640Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-FUFI created."}],"stages":[{"name":"Disclosed","at":"2026-11-04T16:17:32.640Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T16:17:32.640Z","detail":"CVSS 7.5 · EPSS 0.2%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-04T16:14:05.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-04T16:14:05.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-106554 (important)","text":"com.fasterxml.jackson.dataformat/jackson-dataformat-cbor: jackson-dataformat-cbor: Denial of Service via unbounded CBOR tags","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-106554.json"},{"at":"2026-11-04T16:17:32.640Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-106554 (CVSS 7.5)","text":"One CBOR-parsing issue in jackson-dataformats-binary's CBOR module: an unbounded run of CBOR tags drives quadratic-time TagList growth (CPU/GC-exhaustion DoS, PoC-proven).\n\n\n\nPoC executed against com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.18.2; present in current 2.x and 3.x (tools.jackson.dataformat.cbor) HEAD. Distinct from the Avro and Smile/Protobuf advisories for this repo.\n\n\n\nQuadratic CPU/GC DoS from an unbounded chain of CBOR tags (PoC-proven). File: cbor/src/main/java/.../cbor/CBORParser.java (tag handling -> TagList).\n\n\n\nCBOR permits a data item to be preceded by…","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106554"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T16:17:32.640","score":7.5,"severity":"HIGH","desc":"One CBOR-parsing issue in jackson-dataformats-binary's CBOR module: an unbounded run of CBOR tags drives quadratic-time TagList growth (CPU/GC-exhaustion DoS, PoC-proven).\n\n\n\nPoC executed against com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.18.2; present in current 2.x and 3.x…","product":"","seen":1794319491773},"kev":null,"epss":{"epss":0.00177,"pct":0.07357,"at":1794013185971},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}