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CVE-2026-27143

CRITICAL severity · CVSS 9.8
9.8CVSS CRITICAL

Summary

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.

Impact & exploitability

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products we track (1)

Go

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://go.dev/cl/763765 ↗

Last checked: Wed, 10 Jun 2026 22:18:30 UTC