CVE-2026-27143

Aliases:GO-2026-4868BIT-golang-2026-27143
Advisory lineage Upstream: 0 Downstream: 20
Analyzed
Published: 08 Apr 2026, 01:06
Last modified:13 Apr 2026, 18:20

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Apr 2026, 01:06
Published
Vulnerability first disclosed
13 Apr 2026, 18:20
Last Modified
Vulnerability information updated

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

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 6%

Affected Systems

  • go toolchain•cmd/compile

    < 1.25.9 | ≥ 1.26.0-0, < 1.26.2

  • golang•go

    < 1.25.9 | ≥ 1.26.0, < 1.26.2

  • Go•toolchain

    ≥ 1.26.0-0, < 1.26.2

References (4)