CVE-2026-27144: CWE-440: Expected Behavior Violation in Go toolchain cmd/compile
The compiler is meant to unwrap pointers which are the operands of a memory move; a no-op interface conversion prevented the compiler from making the correct determination about non-overlapping moves, potentially leading to memory corruption at runtime.
AI Analysis
Technical Summary
This vulnerability in the Go toolchain's cmd/compile occurs because the compiler is expected to unwrap pointers that are operands of memory move operations. However, a no-op interface conversion prevents the compiler from accurately determining when memory moves do not overlap. This miscalculation can cause memory corruption during runtime, potentially leading to integrity and availability issues in compiled applications. The flaw is tracked as CWE-440 (Expected Behavior Violation). It affects Go versions up to 1.26.0-0 and has a CVSS v3.1 score of 7.1, indicating high severity. No official fix or patch has been documented in the provided data.
Potential Impact
The vulnerability can cause memory corruption at runtime in programs compiled with affected versions of the Go toolchain. This may lead to integrity violations and denial of service (application crashes or unexpected behavior). Confidentiality is not impacted according to the CVSS vector. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is documented, users should monitor Go project advisories for updates. Until a fix is available, consider avoiding use of affected Go versions for critical builds or apply additional testing to detect memory corruption issues in compiled binaries.
CVE-2026-27144: CWE-440: Expected Behavior Violation in Go toolchain cmd/compile
Description
The compiler is meant to unwrap pointers which are the operands of a memory move; a no-op interface conversion prevented the compiler from making the correct determination about non-overlapping moves, potentially leading to memory corruption at runtime.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in the Go toolchain's cmd/compile occurs because the compiler is expected to unwrap pointers that are operands of memory move operations. However, a no-op interface conversion prevents the compiler from accurately determining when memory moves do not overlap. This miscalculation can cause memory corruption during runtime, potentially leading to integrity and availability issues in compiled applications. The flaw is tracked as CWE-440 (Expected Behavior Violation). It affects Go versions up to 1.26.0-0 and has a CVSS v3.1 score of 7.1, indicating high severity. No official fix or patch has been documented in the provided data.
Potential Impact
The vulnerability can cause memory corruption at runtime in programs compiled with affected versions of the Go toolchain. This may lead to integrity violations and denial of service (application crashes or unexpected behavior). Confidentiality is not impacted according to the CVSS vector. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is documented, users should monitor Go project advisories for updates. Until a fix is available, consider avoiding use of affected Go versions for critical builds or apply additional testing to detect memory corruption issues in compiled binaries.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Go
- Date Reserved
- 2026-02-17T19:57:28.435Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d5da2d43e2781badfbe678
Added to database: 4/8/2026, 4:31:41 AM
Last enriched: 4/15/2026, 11:51:11 AM
Last updated: 5/23/2026, 6:54:50 PM
Views: 49
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