{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1528","assignerOrgId":"ce714d77-add3-4f53-aff5-83d477b104bb","state":"PUBLISHED","assignerShortName":"openjs","dateReserved":"2026-01-28T12:05:10.024Z","datePublished":"2026-03-12T20:21:57.775Z","dateUpdated":"2026-03-13T13:04:57.048Z"},"containers":{"cna":{"providerMetadata":{"orgId":"ce714d77-add3-4f53-aff5-83d477b104bb","shortName":"openjs","dateUpdated":"2026-03-12T20:21:57.775Z"},"title":"undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-248","description":"CWE-248 Uncaught exception","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-1284","description":"CWE-1284 Improper validation of specified quantity in input","type":"CWE"}]}],"affected":[{"vendor":"undici","product":"undici","collectionURL":"https://github.com/nodejs/undici/","packageName":"undici","repo":"https://github.com/nodejs/undici/","versions":[{"status":"affected","version":">= 6.0.0 < 6.24.0; 7.0.0 < 7.24.0"},{"status":"unaffected","version":"6.24.0: 7.24.0"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process.\n\nPatches\n\nPatched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.","supportingMedia":[{"type":"text/html","base64":false,"value":"<h3><span>Impact</span></h3><p>A server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process.<br><br><b>Patches<br></b><br>Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.<br></p><br>"}]}],"references":[{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-f269-vfmq-vjvj"},{"url":"https://hackerone.com/reports/3537648"},{"url":"https://cna.openjsf.org/security-advisories.html"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}],"credits":[{"lang":"en","value":"Matteo Collina","type":"remediation reviewer"},{"lang":"en","value":"Ulises Gascón","type":"remediation developer"}],"source":{"advisory":"GHSA-f269-vfmq-vjvj","discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-13T13:03:59.738320Z","id":"CVE-2026-1528","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":"2026-03-13T13:04:57.048Z"}}]}}