What is GHSA-2cpx-6pqp-wf35?

GHSA-2cpx-6pqp-wf35 is a security advisory published by GitHub Security Advisories with Critical severity. fs2-io skips mTLS client verification

Which CVE IDs does GHSA-2cpx-6pqp-wf35 cover?

GHSA-2cpx-6pqp-wf35 covers the following CVE IDs: CVE-2022-31183. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-2cpx-6pqp-wf35?

GHSA-2cpx-6pqp-wf35 has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

Which products are affected by GHSA-2cpx-6pqp-wf35?

GHSA-2cpx-6pqp-wf35 affects 6 products, including: maven/co.fs2:fs2-io:\u003e= 3.1.0, \u003c 3.2.11; maven/co.fs2:fs2-io_2.12:\u003e= 3.1.0, \u003c 3.2.11; maven/co.fs2:fs2-io_3:\u003e= 3.1.0, \u003c 3.2.11; maven/co.fs2:fs2-io_2.13:\u003e= 3.1.0, \u003c 3.2.11; maven/co.fs2:fs2-io_sjs1_2.13:\u003e= 3.1.0, \u003c 3.2.11; and others — see the full list on the advisory page.

GHSA-2cpx-6pqp-wf35CriticalCVSS 9.8

fs2-io skips mTLS client verification

Vendor

GitHub Security Advisories

Published

July 29, 2022

Last Modified

September 30, 2025

🔗 CVE IDs covered (1)

CVE-2022-31183 →

📋 Description

Impact

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:

fs2-io running on Node.js. The JVM TLS implementation is completely independent.
TLSSockets in server-mode. Client-mode TLSSockets are implemented via a different API.
mTLS as enabled via requestCert = true in TLSParameters. The default setting is false for server-mode TLSSockets.

It was introduced with the initial Node.js implementation of fs2-io in v3.1.0.

Patches

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.

Workarounds

If using an unpatched version on Node.js, do not use a server-mode TLSSocket with requestCert = true to establish a mTLS connection.

References

https://github.com/nodejs/node/issues/43994
https://www.cloudflare.com/learning/access-management/what-is-mutual-tls/

For more information

If you have any questions or comments about this advisory:

Open an issue.
Contact the Typelevel Security Team.

🎯 Affected products6

maven/co.fs2:fs2-io:>= 3.1.0, < 3.2.11
maven/co.fs2:fs2-io_2.12:>= 3.1.0, < 3.2.11
maven/co.fs2:fs2-io_3:>= 3.1.0, < 3.2.11
maven/co.fs2:fs2-io_2.13:>= 3.1.0, < 3.2.11
maven/co.fs2:fs2-io_sjs1_2.13:>= 3.1.0, < 3.2.11
maven/co.fs2:fs2-io_sjs1_3:>= 3.1.0, < 3.2.11