Go Programming Language 1.26.2
Go Programming Language 1.26.2, released April 7, 2026, fixes 10 CVEs in Go Programming Language. None of them is reported as exploited. Patch Radar priority: Urgent. The latest Go Programming Language is 1.27.4, which also fixes every one of these CVEs.
Superseded. The latest Go Programming Language is 1.27.4, which also fixes every CVE on this page. Install that instead.
Priority of the 10 CVEs
Applies to
| Product | Version |
|---|---|
| Go Programming Language | 1.26.2 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-27140 | Code execution vulnerability in SWIG code generation in cmd/go | 9.8 | 0.0067 | None reported |
| Urgent | CVE-2026-27143 | Missing bound checks can lead to memory corruption in safe Go in cmd/compile | 9.8 | 0.0055 | None reported |
| High | CVE-2026-32283 | Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls | 9.1 | 0.0063 | None reported |
| High | CVE-2026-32280 | Unexpected work during chain building in crypto/x509 | 9.1 | 0.0063 | None reported |
| High | CVE-2026-32281 | Inefficient policy validation in crypto/x509 | 9.1 | 0.0036 | None reported |
| High | CVE-2026-33810 | Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509 | 9.1 | 0.0035 | None reported |
| High | CVE-2026-32282 | TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix | 9.1 | 0.0030 | None reported |
| High | CVE-2026-27144 | Miscompilation allows memory corruption via CONVNOP-wrapped array copy in cmd/compile | 9.0 | 0.0027 | None reported |
| Routine | CVE-2026-32289 | JsBraceDepth Context Tracking Bugs (XSS) in html/template | 6.1 | 0.0030 | None reported |
| Routine | CVE-2026-32288 | Unbounded allocation for old GNU sparse in archive/tar | 5.5 | 0.0030 | None reported |
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