{"id":"CVE-2026-47874","state":"PUBLISHED","title":"Reactor Netty HTTP Server Denial of Service With Pipelined Requests","description":"The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier","publishedAt":"2026-08-26T23:49:26.907Z","updatedAt":"2026-08-27T13:12:29.108Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"vmware"},"assigner":"vmware","products":["Spring Reactor Netty"],"affected":[{"vendor":"Spring","product":"Reactor Netty","defaultStatus":"unaffected","versions":[{"version":"1.3.0","status":"affected","lessThanOrEqual":"1.3.6","versionType":"custom"},{"version":"1.1.0","status":"affected","lessThanOrEqual":"1.2.18","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"1.0.52","versionType":"custom"}]}],"references":["https://spring.io/security/cve-2026-47874"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/47xxx/CVE-2026-47874.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47874","state":"PUBLISHED","datePublished":"2026-08-26T23:49:26.907Z","dateUpdated":"2026-08-27T13:12:29.108Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-05-20T10:00:57.077Z"},"containers":{"cna":{"title":"Reactor Netty HTTP Server Denial of Service With Pipelined Requests","descriptions":[{"lang":"en","value":"The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier"}],"affected":[{"vendor":"Spring","product":"Reactor Netty","defaultStatus":"unaffected","versions":[{"version":"1.3.0","status":"affected","lessThanOrEqual":"1.3.6","versionType":"custom"},{"version":"1.1.0","status":"affected","lessThanOrEqual":"1.2.18","versionType":"custom"},{"version":"0","status":"affected","lessThanOrEqual":"1.0.52","versionType":"custom"}]}],"references":[{"url":"https://spring.io/security/cve-2026-47874"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-770 Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-08-26T23:49:26.907Z"},"impacts":[{"descriptions":[{"lang":"en","value":"The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory."}]}],"source":{"discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T13:11:46.922489Z","id":"CVE-2026-47874","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","type":"CWE","lang":"en","description":"CWE-770 Allocation of Resources Without Limits or Throttling"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T13:12:29.108Z"}}]}}}