CVE-2024-27935
CVSS 3.1 Score 7.2 of 10 (high)
Details
Summary
CVE-2024-27935 is a vulnerability affecting Deno, a JavaScript, TypeScript, and WebAssembly runtime, from versions 1.35.1 to 1.36.2. This issue, which was patched in version 1.36.3, stems from Deno's Node.js compatibility runtime and involves cross-session data contamination during simultaneous asynchronous reads from Node.js streams sourced from sockets or files. The root cause is the re-use of a global buffer (BUF) in Deno's `stream_wrap.ts` file for performance optimization during these read operations. Consequently, data intended for one session may be received by another session, potentially leading to data corruption and unexpected behavior. All Deno users who employ the node.js compatibility layer for network communication or other streams, including indirectly through packages, are affected by this vulnerability.
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