{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58045", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-06-27T15:00:00.780Z", "datePublished": "2026-08-04T00:49:58.266Z", "dateUpdated": "2026-08-04T00:49:58.266Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in the synchronous `node:zlib` APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected.\r\n\r\nRepeated exploitation of this condition can result in a denial of service.\r\n\r\nThis vulnerability affects Node.js **22.x**, **24.x**, and **26.x**."}], "affected": [{"defaultStatus": "unaffected", "vendor": "nodejs", "product": "node", "versions": [{"version": "26.5.0", "status": "affected", "lessThanOrEqual": "26.5.0", "versionType": "semver"}, {"version": "24.18.0", "status": "affected", "lessThanOrEqual": "24.18.0", "versionType": "semver"}, {"version": "22.23.1", "status": "affected", "lessThanOrEqual": "22.23.1", "versionType": "semver"}]}], "references": [{"url": "https://nodejs.org/en/blog/vulnerability/july-2026-security-releases"}], "metrics": [{"cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.2, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption"}]}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-08-04T00:49:58.266Z"}}}}