CVE-2025-61729

high

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://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

Details

Source: Mitre, NVD

Published: 2025-12-02

Updated: 2025-12-02

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00012