CVE-2025-61724
Excessive CPU consumption in Reader.ReadResponse in net/textproto
Description
The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption.
INFO
Published Date :
Oct. 29, 2025, 11:16 p.m.
Last Modified :
Oct. 29, 2025, 11:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Use a more efficient string builder mechanism.
- Avoid repeated string concatenation.
- Review response generation logic for optimization.
- Update the Reader.ReadResponse function.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-61724.
| URL | Resource |
|---|---|
| https://go.dev/cl/709859 | |
| https://go.dev/issue/75716 | |
| https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI | |
| https://pkg.go.dev/vuln/GO-2025-4015 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-61724 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-61724
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-61724 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-61724 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Oct. 29, 2025
Action Type Old Value New Value Added Description The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption. Added Reference https://go.dev/cl/709859 Added Reference https://go.dev/issue/75716 Added Reference https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI Added Reference https://pkg.go.dev/vuln/GO-2025-4015