{"cve":"CVE-2021-44716","nvd":{"published":"2022-01-01T05:15:08.307","modified":"2026-06-17T04:12:45.480","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf","https://groups.google.com/g/golang-announce/c/hcmEScgc00k","https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html","https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html","https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html"],"products":["debian:debian_linux","golang:go","netapp:cloud_insights_telegraf"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-44716","score":0.04254,"percentile":0.91057,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vc3p-29h2-gpcp","url":"https://osv.dev/vulnerability/GHSA-vc3p-29h2-gpcp","summary":"golang.org/x/net/http2 allows uncontrolled memory consumption","modified":"2023-12-06T01:01:41.998827Z","packages":[{"ecosystem":"Go","name":"golang.org/x/net/http2","purl":"pkg:golang/golang.org/x/net/http2","ranges":["<0.0.0-20211209124913-491a49abca63"],"fixed":["0.0.0-20211209124913-491a49abca63"]}]},{"id":"GO-2022-0288","url":"https://osv.dev/vulnerability/GO-2022-0288","summary":"Unbounded memory growth in net/http and golang.org/x/net/http2","modified":"2024-05-20T16:03:47Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.16.12",">=1.17.0-0 <1.17.5"],"fixed":["1.16.12","1.17.5"]},{"ecosystem":"Go","name":"golang.org/x/net","purl":"pkg:golang/golang.org/x/net","ranges":["<0.0.0-20211209124913-491a49abca63"],"fixed":["0.0.0-20211209124913-491a49abca63"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}