{"id":"CVE-2025-64702","state":"PUBLISHED","title":"quic-go HTTP/3 QPACK Header Expansion DoS","description":"quic-go is an implementation of the QUIC protocol in Go. Versions 0.56.0 and below are vulnerable to excessive memory allocation through quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large header field section (many unique header names and/or large values). The implementation builds an http.Header (used on the http.Request and http.Response, respectively), while only enforcing limits on the size of the (QPACK-compressed) HEADERS frame, but not on the decoded header, leading to memory exhaustion. This issue is fixed in version 0.57.0.","publishedAt":"2025-12-11T20:58:10.517Z","updatedAt":"2025-12-12T20:45:30.439Z","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":"GitHub_M"},"assigner":"GitHub_M","products":["quic-go quic-go"],"affected":[{"vendor":"quic-go","product":"quic-go","versions":[{"version":"< 0.57.0","status":"affected"}]}],"references":["https://github.com/quic-go/quic-go/security/advisories/GHSA-g754-hx8w-x2g6","https://github.com/quic-go/quic-go/commit/5b2d2129f8315da41e01eff0a847ab38a34e83a8"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:09:48.677Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/64xxx/CVE-2025-64702.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-64702","state":"PUBLISHED","datePublished":"2025-12-11T20:58:10.517Z","dateUpdated":"2025-12-12T20:45:30.439Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-11-10T14:07:42.920Z"},"containers":{"cna":{"title":"quic-go HTTP/3 QPACK Header Expansion DoS","descriptions":[{"lang":"en","value":"quic-go is an implementation of the QUIC protocol in Go. Versions 0.56.0 and below are vulnerable to excessive memory allocation through quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large header field section (many unique header names and/or large values). The implementation builds an http.Header (used on the http.Request and http.Response, respectively), while only enforcing limits on the size of the (QPACK-compressed) HEADERS frame, but not on the decoded header, leading to memory exhaustion. This issue is fixed in version 0.57.0."}],"affected":[{"vendor":"quic-go","product":"quic-go","versions":[{"version":"< 0.57.0","status":"affected"}]}],"references":[{"url":"https://github.com/quic-go/quic-go/security/advisories/GHSA-g754-hx8w-x2g6","name":"https://github.com/quic-go/quic-go/security/advisories/GHSA-g754-hx8w-x2g6","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/quic-go/quic-go/commit/5b2d2129f8315da41e01eff0a847ab38a34e83a8","name":"https://github.com/quic-go/quic-go/commit/5b2d2129f8315da41e01eff0a847ab38a34e83a8","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-12-11T20:58:10.517Z"},"source":{"advisory":"GHSA-g754-hx8w-x2g6","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-12T20:44:44.521680Z","id":"CVE-2025-64702","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-12T20:45:30.439Z"}}]}}}