CVE-2026-27143
Missing bound checks can lead to memory corruption in safe Go in cmd/compile
CVE-2026-27143 is fixed in 41 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
0.0055
46th percentile
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.
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 | |||
| amazon-cloudwatch-agent · amzn 2023 | 1.300066.2-2.amzn2023 | ALAS2023-2026-1747 | May 25, 2026 |
| amazon-ecr-credential-helper · amzn 2023 | 0.12.0-2.amzn2023 | ALAS2023-2026-1645 | May 11, 2026 |
| containerd · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-debuginfo · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-debugsource · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-stress · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| containerd-stress-debuginfo · amzn 2023 | 2.2.3-1.amzn2023.0.1 | ALAS2023-2026-1606 | Apr 27, 2026 |
| credentials-fetcher · amzn 2023 | 2.0.1-1.amzn2023.0.3 | ALAS2023-2026-1598 | Apr 27, 2026 |
| 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 |
| docker · amzn 2023 | 25.0.14-1.amzn2023.0.4 | ALAS2023-2026-1615 | Apr 27, 2026 |
| docker-debuginfo · amzn 2023 | 25.0.14-1.amzn2023.0.4 | ALAS2023-2026-1615 | Apr 27, 2026 |
| docker-debugsource · amzn 2023 | 25.0.14-1.amzn2023.0.4 | ALAS2023-2026-1615 | Apr 27, 2026 |
| ecs-init · amzn 2023 | 1.103.0-1.amzn2023 | ALAS2023-2026-1637 | Apr 27, 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-2026-27143 | 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 |
| golist · amzn 2023 | 0.10.4-12.amzn2023.0.8 | ALAS2023-2026-1599 | Apr 27, 2026 |
| golist-debuginfo · amzn 2023 | 0.10.4-12.amzn2023.0.8 | ALAS2023-2026-1599 | Apr 27, 2026 |
| golist-debugsource · amzn 2023 | 0.10.4-12.amzn2023.0.8 | ALAS2023-2026-1599 | Apr 27, 2026 |
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | OPENSUSE-SU-2026:21483-1 | Jul 30, 2026 |
| nerdctl · amzn 2023 | 2.2.2-1.amzn2023.0.1 | ALAS2023-2026-1605 | Apr 27, 2026 |
| oci-add-hooks · amzn 2023 | 0-0.1.20200504git268e3bb.amzn2023.0.10 | ALAS2023-2026-1660 | May 11, 2026 |
| oci-add-hooks-debuginfo · amzn 2023 | 0-0.1.20200504git268e3bb.amzn2023.0.10 | ALAS2023-2026-1660 | May 11, 2026 |
| oci-add-hooks-debugsource · amzn 2023 | 0-0.1.20200504git268e3bb.amzn2023.0.10 | ALAS2023-2026-1660 | May 11, 2026 |
| runc · amzn 2023 | 1.3.4-4.amzn2023.0.2 | ALAS2023-2026-1661 | May 11, 2026 |
| runc-debuginfo · amzn 2023 | 1.3.4-4.amzn2023.0.2 | ALAS2023-2026-1661 | May 11, 2026 |
| runc-debugsource · amzn 2023 | 1.3.4-4.amzn2023.0.2 | ALAS2023-2026-1661 | May 11, 2026 |
| runfinch-finch · amzn 2023 | 1.17.0-1.amzn2023.0.1 | ALAS2023-2026-1671 | May 11, 2026 |
| soci-snapshotter · amzn 2023 | 0.13.0-1.amzn2023.0.2 | ALAS2023-2026-1700 | May 11, 2026 |
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