{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-56848", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-06-23T15:00:03.632Z", "datePublished": "2026-08-04T15:57:24.399Z", "dateUpdated": "2026-08-04T17:36:14.044Z" }, "containers": { "cna": { "descriptions": [ { "lang": "en", "value": "A flaw in Node.js HTTP/2 handling allows `nghttp2_session_mem_send()` to be called re-entrantly while `nghttp2_session_mem_recv()` is executing, resulting in a heap-use-after-free.\r\n\r\nThis vulnerability affects Node.js **26.x**, **24.x**, and **22.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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH" } } ], "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "providerMetadata": { "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-08-04T15:57:24.399Z" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-04T17:35:44.952267Z", "id": "CVE-2026-56848", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-04T17:36:14.044Z" } } ] } }