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Security Advisories

CVE-2025-61729

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-61729

Severity

7.5

High

CVSS V3

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Description

Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certificate provided by a malicious actor can result in excessive resource consumption.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2025-61729
  • https://github.com/advisories/GHSA-7c64-f9jr-v9h2
  • https://pkg.go.dev/vuln/GO-2025-4155
  • https://groups.google.com/g/golang-announce/c/8FJoBkPddm4
  • https://go.dev/cl/725920
  • https://go.dev/issue/76445

Affected packages

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