Is CVE-2022-31183 actively exploited?

No active exploitation of CVE-2022-31183 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-31183 be exploited remotely?

Yes. CVE-2022-31183 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-31183?

CVE-2022-31183 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-31183

CWE-295Published: August 1, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

fs2 is a compositional, streaming I/O library for Scala. When establishing a server-mode `TLSSocket` using `fs2-io` on Node.js, the parameter `requestCert = true` is ignored, peer certificate verification is skipped, and the connection proceeds. The vulnerability is limited to: 1. `fs2-io` running on Node.js. The JVM TLS implementation is completely independent. 2. `TLSSocket`s in server-mode. Client-mode `TLSSocket`s are implemented via a different API. 3. mTLS as enabled via `requestCert = true` in `TLSParameters`. The default setting is `false` for server-mode `TLSSocket`s. It was introduced with the initial Node.js implementation of fs2-io in 3.1.0. A patch is released in v3.2.11. The requestCert = true parameter is respected and the peer certificate is verified. If verification fails, a SSLException is raised. If using an unpatched version on Node.js, do not use a server-mode TLSSocket with requestCert = true to establish a mTLS connection.

NVD Source

Technical Analysis

CVE-2022-31183 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.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.