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CVE-2026-27143 Critical

Missing bound checks can lead to memory corruption in safe Go in cmd/compile

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.

Exploit probability 0.5%
Published April 18, 2026
Required by Not available
Last source change April 18, 2026

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

150 explicit affected versions

Go toolchain
Bitnami golang

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities CVE-2026-27143

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.

View original source
Open Source Vulnerabilities GO-2026-4868

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.

View original source
Open Source Vulnerabilities BIT-golang-2026-27143

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.

View original source

05 / REFERENCES

Further evidence