{"id":"CVE-2021-44716","aliases":["BIT-golang-2021-44716","GHSA-vc3p-29h2-gpcp","GO-2022-0288"],"url":"https://o3.security/vulnerability/CVE-2021-44716","summary":"golang.org/x/net/http2 allows uncontrolled memory consumption","details":"net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests.","published":"2022-01-01T05:15:08.307Z","modified":"2026-07-08T06:00:05.393498116Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.03958,"percentile":0.8967,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"golang.org/x/net/http2","fixedVersion":"0.0.0-20211209124913-491a49abca63"}],"fix":null,"references":[{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202208-02"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220121-0002/"},{"type":"FIX","url":"https://groups.google.com/g/golang-announce/c/hcmEScgc00k"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:00:05.393498116Z"}}