CVE-2025-61729

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://github.com/Nikhil-Ladha/cve-smasher-claude-plugin

https://github.com/BillDett/caseload

https://pkg.go.dev/vuln/GO-2025-4155

https://groups.google.com/g/golang-announce/c/8FJoBkPddm4

https://go.dev/issue/76445

https://go.dev/cl/725920

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-200318

Details

Source: Mitre, NVD

Named Vulnerability: GO-2025-4155Named Vulnerability: GHSA-7c64-f9jr-v9h2

Risk Information

CVSS v2

CVSS v3

EPSS