An out-of-bounds write vulnerability has been identified in Samsung Opensource Walrus, classified under CVE-2026-86313. The vulnerability allows overflow buffers and affects a specific commit of the Walrus project (af80e665ea49d9003695a66502f841ed1d8397e7). Out-of-bounds write vulnerabilities can lead to memory corruption, potential code execution, or application crashes. The issue has been reported via the NVD (National Vulnerability Database) and is linked to a pull request on the Samsung Walrus GitHub repository. Samsung Walrus is an open-source WebAssembly runtime. The vulnerability is currently rated as high criticality. A fix or patch may be available or in progress via the referenced GitHub pull request.
