Is CVE-2026-27143 actively exploited?

CVE-2026-27143 has no public evidence of in-the-wild exploitation as of 2026-04-16.

What is the CVSS score for CVE-2026-27143?

CVE-2026-27143 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2026-27143?

Patch guidance is available from golang security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-27143.

Which products are affected by CVE-2026-27143?

2 products: golang go, golang go.

Fix CVE-2026-27143 - CRITICAL golang go

Description

Arithmetic over induction variables in loops were not correctly checked for underflow or overflow. As a result, the compiler would allow for invalid indexing to occur at runtime, potentially leading to memory corruption.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: NVD-CWE-Other

Metadata

Primary Vendor: GOLANG
Published: 4/8/2026
Last Modified: 4/16/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-27143

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary