cve.bz

CVE-2022-31183

9.8 criticalEPSS 0.8%

Critical (9.8) in typelevel fs2. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in co.fs2:fs2-io 3.2.11.

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.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE
CWE-295
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-2cpx-6pqp-wf35Mavenco.fs2:fs2-io>=3.1.0 <3.2.113.2.11
GHSA-2cpx-6pqp-wf35Mavenco.fs2:fs2-io_2.12>=3.1.0 <3.2.113.2.11
GHSA-2cpx-6pqp-wf35Mavenco.fs2:fs2-io_3>=3.1.0 <3.2.113.2.11
GHSA-2cpx-6pqp-wf35Mavenco.fs2:fs2-io_2.13>=3.1.0 <3.2.113.2.11
GHSA-2cpx-6pqp-wf35Mavenco.fs2:fs2-io_sjs1_2.13>=3.1.0 <3.2.113.2.11
GHSA-2cpx-6pqp-wf35Mavenco.fs2:fs2-io_sjs1_3>=3.1.0 <3.2.113.2.11

References

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