CVE-2026-27140
Code execution vulnerability in SWIG code generation in cmd/go
CVE-2026-27140 is fixed in 17 products on 2 platforms, first by Go Programming Language 1.26.2, released April 7, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
UrgentFixed on 2 platforms
CVSS
9.8
Critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0067
52nd percentile
SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Go Programming Language | 1.26.2 | Go Programming Language 1.26.2 | Apr 7, 2026 |
| Linux | |||
| delve · RHEL 8 | 0:1.25.2-1.module+el8.10.0+23746+9db33b5e | RHSA-2026:10704 | May 15, 2026 |
| delve · almalinux 8 | 1.25.2-1.module_el8.10.0+4074+24330916 | ALSA-2026:10704 | Apr 27, 2026 |
| delve · ol 8 | 0:1.25.2-1.0.1.module+el8.10.0+90715+2d4d8dfd | ELSA-2026-10704 | Apr 27, 2026 |
| delve · rocky 8 | 0:1.25.2-1.module+el8.10.0+40035+ee0a7047 | RLSA-2026:10704 | May 6, 2026 |
| go-toolset · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| go-toolset · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| go-toolset · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| go-toolset · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| go-toolset · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| go-toolset · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| go1.25 · opensuse-leap 16.0 | 1.25.9-160000.1.1 | OPENSUSE-SU-2026:20570-1 | Apr 20, 2026 |
| go1.25 · sles 15.6 | 1.25.9-150000.1.35.1 | SUSE-SU-2026:1321-1 | Apr 14, 2026 |
| go1.25 · sles 15.7 | 1.25.9-150000.1.35.1 | SUSE-SU-2026:1321-1 | Apr 14, 2026 |
| go1.25-openssl · opensuse-leap 16.0 | 1.25.12-160000.1.1 | OPENSUSE-SU-2026:21319-1 | Jul 13, 2026 |
| go1.25-openssl · sles 16.0 | 1.25.12-160000.1.1 | SUSE-SU-2026:22638-1 | Jul 13, 2026 |
| go1.26 · opensuse-leap 16.0 | 1.26.2-160000.1.1 | OPENSUSE-SU-2026:20571-1 | Apr 20, 2026 |
| go1.26 · sles 15.6 | 1.26.2-150000.1.9.1 | SUSE-SU-2026:1320-1 | Apr 14, 2026 |
| go1.26 · sles 15.7 | 1.26.2-150000.1.9.1 | SUSE-SU-2026:1320-1 | Apr 14, 2026 |
| go1.26-openssl · opensuse-leap 16.0 | 1.26.4-160000.1.1 | OPENSUSE-SU-2026:21254-1 | Jul 7, 2026 |
| go1.26-openssl · sles 16.0 | 1.26.4-160000.1.1 | SUSE-SU-2026:22572-1 | Jul 7, 2026 |
| golang · RHEL 10 | 1.25.9-1.el10_0 | RHSA-2026:16024 | Apr 8, 2026 |
| golang · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| golang · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| golang · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| golang · amzn 2023 | 1.25.9-1.amzn2023.0.1 | ALAS2023-2026-1593 | Apr 27, 2026 |
| golang · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| golang · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| golang · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| golang · rocky 10 | 0:1.25.9-3.el10_1 | RLSA-2026:10217 | May 6, 2026 |
| golang · rocky 8 | 0:1.25.9-1.module+el8.10.0+40168+6cb0ea60 | RLSA-2026:10704 | May 6, 2026 |
| golang · rocky 9 | 0:1.25.9-1.el9_7 | RLSA-2026:10219 | May 6, 2026 |
| golang-1.26 · Debian 14 | 1.26.2-1 | DEBIAN-CVE-2026-27140 | Apr 8, 2026 |
| golang-bin · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| golang-bin · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| golang-bin · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| golang-bin · amzn 2023 | 1.25.9-1.amzn2023.0.1 | ALAS2023-2026-1593 | Apr 27, 2026 |
| golang-bin · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| golang-bin · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| golang-bin · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| golang-docs · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| golang-docs · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| golang-docs · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| golang-docs · amzn 2023 | 1.25.9-1.amzn2023.0.1 | ALAS2023-2026-1593 | Apr 27, 2026 |
| golang-docs · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| golang-docs · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| golang-docs · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| golang-misc · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| golang-misc · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| golang-misc · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| golang-misc · amzn 2023 | 1.25.9-1.amzn2023.0.1 | ALAS2023-2026-1593 | Apr 27, 2026 |
| golang-misc · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| golang-misc · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| golang-misc · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| golang-race · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| golang-race · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| golang-race · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| golang-race · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| golang-race · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| golang-race · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| golang-shared · amzn 2023 | 1.25.9-1.amzn2023.0.1 | ALAS2023-2026-1593 | Apr 27, 2026 |
| golang-src · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| golang-src · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| golang-src · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| golang-src · amzn 2023 | 1.25.9-1.amzn2023.0.1 | ALAS2023-2026-1593 | Apr 27, 2026 |
| golang-src · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| golang-src · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| golang-src · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| golang-tests · RHEL 8 | 0:1.25.9-1.module+el8.10.0+24226+c418b32c | RHSA-2026:10704 | May 15, 2026 |
| golang-tests · RHEL 9 | 0:1.25.9-1.el9_7 | RHSA-2026:10219 | May 15, 2026 |
| golang-tests · almalinux 8 | 1.25.9-1.module_el8.10.0+4167+2e2e20dd | ALSA-2026:10704 | Apr 27, 2026 |
| golang-tests · amzn 2023 | 1.25.9-1.amzn2023.0.1 | ALAS2023-2026-1593 | Apr 27, 2026 |
| golang-tests · ol 10 | 0:1.25.9-3.el10_1 | ELSA-2026-10217 | Apr 24, 2026 |
| golang-tests · ol 8 | 0:1.25.9-1.module+el8.10.0+90881+305b00ae | ELSA-2026-10704 | Apr 27, 2026 |
| golang-tests · ol 9 | 0:1.25.9-1.el9_7 | ELSA-2026-10219 | Apr 24, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | OPENSUSE-SU-2026:21483-1 | Jul 30, 2026 |
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