CVE-2025-61729

Name: CVE-2025-61729
Creator: NVD / NIST
Published: 2025-12-02T19:15:51.447+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2025-61729 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.45%

35.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Golang	Go	< 1.24.11
Golang	Go	>= 1.25.0, < 1.25.5

References

https://go.dev/cl/725920Patch
https://go.dev/issue/76445Issue Tracking, Patch
https://groups.google.com/g/golang-announce/c/8FJoBkPddm4Mailing List, Release Notes
https://pkg.go.dev/vuln/GO-2025-4155Vendor Advisory

Timeline

Published: Dec 2, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-61729?

How severe is CVE-2025-61729?

CVE-2025-61729 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2025-61729?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-61729?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST