{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T22:15:07.380","vulnerabilities":[{"cve":{"id":"CVE-2026-22036","sourceIdentifier":"security-advisories@github.com","published":"2026-01-14T19:16:47.833","lastModified":"2026-01-22T21:15:50.070","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This vulnerability is fixed in 7.18.0 and 6.23.0."},{"lang":"es","value":"Undici es un cliente HTTP/1.1 para Node.js. Antes de 7.18.0 y 6.23.0, el número de enlaces en la cadena de descompresión es ilimitado y el maxHeaderSize predeterminado permite a un servidor malicioso insertar miles de pasos de compresión, lo que lleva a un alto uso de CPU y una asignación excesiva de memoria. Esta vulnerabilidad está corregida en 7.18.0 y 6.23.0."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-770"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*","versionEndExcluding":"6.23.0","matchCriteriaId":"5233A98F-D94B-41A6-9D16-4E69159ABF37"},{"vulnerable":true,"criteria":"cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*","versionStartIncluding":"7.0.0","versionEndExcluding":"7.18.2","matchCriteriaId":"EF11F080-1703-43FC-86C0-BF257C4A2540"}]}]}],"references":[{"url":"https://github.com/nodejs/undici/commit/b04e3cbb569c1596f86c108e9b52c79d8475dcb3","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-g9mf-h72j-4rw9","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}}]}