{"id":"CVE-2022-2529","aliases":["GHSA-9rpw-2h95-666c","GO-2022-1032"],"title":"Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package","summary":"Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","vendor":"cloudflare","product":"github.com/cloudflare/goflow/v3","ecosystem":"go","affected":["github.com/cloudflare/goflow/v3 < 3.4.4"],"patched":["github.com/cloudflare/goflow/v3 3.4.4"],"published":"2022-10-01","updated":"2026-07-08","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-9rpw-2h95-666c","references":[{"url":"https://github.com/cloudflare/goflow/security/advisories/GHSA-9rpw-2h95-666c"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-2529"},{"url":"https://github.com/cloudflare/goflow/commit/2b94619a6204443e3ca1769f4e459f9f57039c51"},{"url":"https://github.com/cloudflare/goflow/commit/c829ccd2c0aafdc9b886b20bf6f28095607f4998"},{"url":"https://github.com/cloudflare/goflow"},{"url":"https://github.com/cloudflare/goflow/releases/tag/v3.4.4"}],"tags":["osv","go"],"epss":0.00873,"epssPercentile":0.56861,"ingestedAt":"2026-07-09T18:56:36.293Z","slug":"CVE-2022-2529","body":"## Overview\n\n### Impact\nThe sflow decode package prior to version 3.4.4 does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume huge amounts of memory resulting in a denial of service.\n\n### Specific Go Packages Affected\ngithub.com/cloudflare/goflow/v3/decoders/sflow\n\n### Patches\nVersion 3.4.4 contains patches fixing this.\n\n### Workarounds\nA possible workaround is to not have your goflow collector publicly reachable.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [goflow repo](https://github.com/cloudflare/goflow)\n* Email us [netdev[@]cloudflare.com ](mailto:netdev@cloudflare.com)\n\n\n## Affected packages\n\n- `github.com/cloudflare/goflow/v3 < 3.4.4`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/cloudflare/goflow/v3 3.4.4`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}