High severity7.5OSV Advisory· Published Jul 21, 2021· Updated Jun 17, 2026
CVE-2021-23409
CVE-2021-23409
Description
The package github.com/pires/go-proxyproto before 0.6.0 are vulnerable to Denial of Service (DoS) via creating connections without the proxy protocol header.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/pires/go-proxyprotoGo | < 0.6.1 | 0.6.1 |
Affected products
3- Range: 0.1.0, 0.1.1, 0.1.2, …
- cpe:2.3:a:go-proxyproto_project:go-proxyproto:*:*:*:*:*:*:*:*Range: <0.6.0
Patches
Vulnerability mechanics
References
12- github.com/pires/go-proxyproto/pull/74nvdPatchThird Party AdvisoryWEB
- github.com/pires/go-proxyproto/pull/74/commits/cdc63867da24fc609b727231f682670d0d1cd346nvdPatchThird Party AdvisoryWEB
- snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1316439nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-xcf7-q56x-78ghghsaADVISORY
- github.com/pires/go-proxyproto/issues/65nvdIssue TrackingThird Party AdvisoryWEB
- github.com/pires/go-proxyproto/releases/tag/v0.6.0nvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-23409ghsaADVISORY
- github.com/pires/go-proxyproto/commit/2e44d7a76a851d66890ab341403253afae5caac2ghsaWEB
- github.com/pires/go-proxyproto/issues/75ghsaWEB
- github.com/pires/go-proxyproto/pull/76ghsaWEB
- github.com/pires/go-proxyproto/releases/tag/v0.6.1ghsaWEB
- pkg.go.dev/vuln/GO-2022-0233ghsaWEB
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