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Security Advisories

GO-2026-6609

https://pkg.go.dev/vuln/GO-2026-6609

Severity

Unknown
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Summary

Lack of limit on size of parsed Range headers in net/http

Description

When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.

  • https://nvd.nist.gov/vuln/detail/CVE-2026-78667
  • https://github.com/advisories/GHSA-f4xw-m386-m277
  • https://pkg.go.dev/vuln/GO-2026-6609
  • https://go.dev/cl/847309
  • https://go.dev/issue/81858
  • https://groups.google.com/g/golang-announce/c/U2fTuyDJznI

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