Golang 1.20: The compiler is meant to unwrap pointers which are the operands of a memory move; a no-op interface
Affects golang-1.20Source GCVE Database
Not known to be exploited · CVSS 7.1 High.
Data as of 9 Nov 2026, 14:20 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSgolang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgolang-1.24pkg:deb/ubuntu/golang-1.24?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.23pkg:deb/ubuntu/golang-1.23?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.24pkg:deb/ubuntu/golang-1.24?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10golang-1.25pkg:deb/ubuntu/golang-1.25?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgolang-1.21pkg:deb/ubuntu/golang-1.21?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should monitor official Golang and distribution vendor advisories for updates and apply patches once available.
Description
A vulnerability in Golang 1.20 involves the compiler's handling of pointer operands during memory move operations. A no-op interface conversion prevented the compiler from correctly determining non-overlapping memory moves, which could lead to memory corruption at runtime. This issue affects specific Golang 1.21 and 1.22 versions as listed. The vulnerability has a high severity rating with a CVSS score of 7.1.
References
- ubuntu.com/security/CVE-2026-27144 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-27144 (opens in a new tab)
- go.dev/cl/763764 (opens in a new tab)
- go.dev/issue/78371 (opens in a new tab)
- groups.google.com/g/golang-announce/c/0uYbvbPZRWU (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-4867 (opens in a new tab)