{"id":"CVE-2022-41717","aliases":["BIT-golang-2022-41717","GHSA-xrjj-mj9h-534m","GO-2022-1144"],"url":"https://o3.security/vulnerability/CVE-2022-41717","summary":"Excessive memory growth in net/http and golang.org/x/net/http2","details":"An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large keys can cause the server to allocate approximately 64 MiB per open connection.","published":"2022-12-08T19:03:53.161Z","modified":"2026-08-12T03:51:17.159422775Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.05623,"percentile":0.92561,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"golang.org/x/net/http2","fixedVersion":"0.4.0"},{"ecosystem":"Go","name":"golang.org/x/net","fixedVersion":"0.4.0"}],"fix":null,"references":[{"type":"WEB","url":"https://go.dev/cl/455635"},{"type":"WEB","url":"https://go.dev/cl/455717"},{"type":"WEB","url":"https://go.dev/issue/56350"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/L_3rmdT0BMU/m/yZDrXjIiBQAJ"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4SBIUECMLNC572P23DDOKJNKPJVX26SP/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/56B2FFESRYYP6IY2AZ3UWXLWKZ5IYZN4/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5RSKA2II6QTD4YUKUNDVJQSRYSFC4VFR/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ANIOPUXWIHVRA6CEWXCGOMX3YYS6KFHG/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHHITS4PUOZAKFIUBQAQZC7JWXMOYE4B/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CSVIS6MTMFVBA7JPMRAUNKUOYEVSJYSB/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEOTKBUPZXHE3F352JBYNTSNRXYLWD6P/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NQGNAXK3YBPMUP3J4TECIRDHFGW37522/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PUM4DIVOLJCBK5ZDP4LJOL24GXT3YSIR/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PW3XC47AUW5J5M2ULJX7WCCL3B2ETLMT/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Q52IQI754YAE4XPR4QBRWPIVZWYGZ4FS/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QBKBAZBIOXZV5QCFHZNSVXULR32XJCYD/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WPEIZ7AMEJCZXU3FEJZMVRNHQZXX5P3I/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZSVEMQV5ROY5YW5QE3I57HT3ITWG5GCV/"},{"type":"WEB","url":"https://pkg.go.dev"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2022-1144"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/41xxx/CVE-2022-41717.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-41717"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202311-09"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230120-0008/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:17.159422775Z"}}