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CVE-2025-61729

Good to know:

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Date: December 2, 2025

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.

Severity Score

Related Resources (6)

https://pkg.go.dev/vuln/GO-2025-4155
https://nvd.nist.gov/vuln/detail/CVE-2025-61729
https://go.dev/cl/725920
https://groups.google.com/g/golang-announce/c/8FJoBkPddm4
https://go.dev/issue/76445
https://www.mend.io/vulnerability-database/CVE-2025-61729

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption

CWE-400

Top Fix

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Upgrade Version

Upgrade to version github.com/golang/go - go1.24.11;github.com/golang/go - go1.25.5;https://github.com/golang/go.git - go1.24.11;https://github.com/golang/go.git - go1.25.5

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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