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CVE-2026-27144 Golang CVE debrief

A high-severity vulnerability, CVE-2026-27144, was found in the Go programming language. The compiler failed to correctly determine non-overlapping moves due to a no-op interface conversion, potentially causing memory corruption. This issue can impact developers and organizations using the Go programming language, as it may lead to runtime memory corruption if exploited. The vulnerability has a CVSS score of 7.1 and is classified as HIGH severity.

Vendor
Golang
Product
Go
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-25
Advisory published
2026-04-08
Advisory updated
2026-07-25

Who should care

Developers and organizations using the Go programming language should be aware of this vulnerability and take necessary actions to mitigate the risk. Those responsible for maintaining or updating Go-based applications should review the official advisory and consider applying patches or other recommended mitigations.

Technical summary

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. This technical issue arises from the compiler's inability to accurately assess memory move operations when interface conversions are involved, which could result in memory corruption if the vulnerability is exploited.

Defensive priority

High

Recommended defensive actions

  • Apply the patch from the vendor advisory
  • Review and update affected Go versions
  • Monitor for potential memory corruption issues
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-04-08T02:16:03.130Z and last modified on 2026-07-25T10:10:00.167Z. The NVD entry is currently Analyzed. This vulnerability affects the Go programming language, specifically in how the compiler handles memory moves and interface conversions. Evidence is limited to public CVE and NVD information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-27144 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-27144

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-27144 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-27144

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.