BaseFortify

Publication date: 2025-12-02

Last updated on: 2025-12-04

Assigner: Go Project

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-12-02

Last Modified

2025-12-04

Generated

2026-07-06

AI Q&A

2025-12-02

EPSS Evaluated

2026-07-05

NVD

CVE-2025-61729

Affected Vendors & Products

Vendor	Product	Version / Range
golang	go	1.25.0
golang	go	1.25.5
golang	go	1.24.11
golang	go	1.26

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability occurs within the HostnameError.Error() function, where the error string construction does not limit the number of hosts printed. The string is built using repeated concatenation, causing quadratic runtime. As a result, a malicious certificate can cause excessive resource consumption.

Impact Analysis

The vulnerability can lead to excessive resource consumption on the affected system, potentially causing performance degradation or denial of service if a malicious certificate triggers the error string construction.

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