Disclosure summary
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.
Source-reported weakness categories
CWE-770
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-61724
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| golang | go | * {"versionStartIncluding":"1.25.0","versionEndExcluding":"1.25.2"} |
Microsoft Security Updates (CVRF) · 2025-Oct
Open original source · Updated Sep 29, 2026
Excessive CPU consumption in Reader.ReadResponse in net/textproto
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.5
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 msft-golang 1.25.8-1 on CBL-Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.8-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.9-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.11-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.5-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.26.0-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.7-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.25.8-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.8-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 golang 1.18.8-10 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 golang 1.22.7-5 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.23.12-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.3-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.12-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.6-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 msft-golang 1.24.13-1 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.9-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.25.10-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 golang 1.27.0-1 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- Release Notes · product IDs 21117-21692
- Vendor guidance · product IDs 21117-21692
- Vendor guidance · product IDs 21778-17084
- Vendor guidance · product IDs 21778-17084
Original records & references
- NIST NVD record
- CVE Program record
- go.dev — Patch
- go.dev — Issue Tracking
- groups.google.com — Mailing List, Release Notes
- pkg.go.dev — Vendor Advisory
PUBLISHED 2025-10-29T19:16:20-04:00
MODIFIED 2026-10-08T06:10:00-04:00
INGESTED 2026-10-08T12:35:14-04:00