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Golang CVE-2025-61729

| EUVDEUVD-2025-200318 HIGH
Improper Certificate Validation (CWE-295)
2025-12-02 security@golang.org
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
qualitative
SUSE
HIGH
qualitative
Red Hat
7.5 HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
EUVD ID Assigned
Mar 15, 2026 - 14:04 euvd
EUVD-2025-200318
Analysis Generated
Mar 15, 2026 - 14:04 vuln.today
Patch released
Mar 15, 2026 - 14:04 nvd
Patch available
CVE Published
Dec 02, 2025 - 19:15 nvd
HIGH 7.5

DescriptionCVE.org

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.

Analysis

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.

Technical ContextAI

This vulnerability is classified as Improper Certificate Validation (CWE-295).

RemediationAI

A vendor patch is available. Apply it as soon as possible and verify the fix.

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Vendor StatusVendor

Ubuntu

Priority: Medium
golang-1.24
Release Status Version
questing needs-triage -
upstream needs-triage -
plucky ignored end of life, was needs-triage
jammy needs-triage -
noble needs-triage -
golang-1.25
Release Status Version
jammy DNE -
noble DNE -
plucky DNE -
questing needs-triage -
upstream needs-triage -

Debian

Bug #1121848
golang-1.15
Release Status Fixed Version Urgency
bullseye vulnerable 1.15.15-1~deb11u4 -
(unstable) fixed (unfixed) -
golang-1.19
Release Status Fixed Version Urgency
bookworm vulnerable 1.19.8-2 -
(unstable) fixed (unfixed) -
golang-1.24
Release Status Fixed Version Urgency
trixie vulnerable 1.24.4-1 -
forky, sid fixed 1.24.13-2 -
(unstable) fixed 1.24.12-1 -
golang-1.25
Release Status Fixed Version Urgency
forky, sid fixed 1.25.8-1 -
(unstable) fixed 1.25.6-1 -

SUSE

Severity: High
Product Status
Container suse/sl-micro/6.0/baremetal-os-container:latest Affected
Container suse/sl-micro/6.0/base-os-container:2.1.3-7.7 Container suse/sl-micro/6.0/toolbox:13.2-9.2 Image SL-Micro Affected
Container suse/sl-micro/6.0/kvm-os-container:latest Container suse/sl-micro/6.0/rt-os-container:latest Affected
Container suse/sl-micro/6.1/baremetal-os-container:2.2.1-7.35 Affected
Container suse/sl-micro/6.1/base-os-container:2.2.1-5.57 Image SL-Micro-Azure Image SL-Micro-BYOS-Azure Image SL-Micro-BYOS-EC2 Image SL-Micro-BYOS-GCE Image SL-Micro-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-Azure-llc Image SUSE-Multi-Linux-Manager-Server-Azure-ltd Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-EC2-llc Image SUSE-Multi-Linux-Manager-Server-EC2-ltd Affected

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CVE-2025-61729 vulnerability details – vuln.today

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