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Critical 9.8Published Apr 8, 2026
CVE-2026-27143Arithmetic over induction variables in loops were not correctly checked for underflow or overflow.
Updated under an hour ago ()
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It affects golang go. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
golang go golang:go | before 1.25.9; from 1.26.0 before 1.26.2 | NVD |
References
- https://go.dev/cl/763765patch
- https://go.dev/issue/78333issue-tracking
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWUmailing-list, release-notes
- https://pkg.go.dev/vuln/GO-2026-4868vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.