Is CVE-2024-27935 actively exploited?

No active exploitation of CVE-2024-27935 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-27935 be exploited remotely?

Yes. CVE-2024-27935 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-27935?

CVE-2024-27935 has a CVSS score of 8.3 (HIGH).

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HIGH

CVE-2024-27935

CWE-488Published: March 21, 2024· Updated: Jun 17, 2026

8.3

CVSS v3.1

Official Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.35.1 and prior to version 1.36.3, a vulnerability in Deno's Node.js compatibility runtime allows for cross-session data contamination during simultaneous asynchronous reads from Node.js streams sourced from sockets or files. The issue arises from the re-use of a global buffer (BUF) in stream_wrap.ts used as a performance optimization to limit allocations during these asynchronous read operations. This can lead to data intended for one session being received by another session, potentially resulting in data corruption and unexpected behavior. This affects all users of Deno that use the node.js compatibility layer for network communication or other streams, including packages that may require node.js libraries indirectly. Version 1.36.3 contains a patch for this issue.

NVD Source

Technical Analysis

CVE-2024-27935 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.