CVE-2022-31183

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 53% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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. TLSSockets in server-mode. Client-mode TLSSockets are implemented via a different API. 3. 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 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.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
72(Attend)
EG Risk 72/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
47.0%
KEV
Not listed

Published

August 1, 2022

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jul 23, 2026
Patch available. Sources: github_commit, github.
github Patch Available

mTLS client verification is skipped in Node.js TLS server · Advisory · typelevel/fs2 · GitHub

https://github.com/typelevel/fs2/security/advisories/GHSA-2cpx-6pqp-wf35
github_commit Patch Available

commit 659824395826 (typelevel/fs2)

Patch available: typelevel/fs2 v3.7.0-RC3 (contains commit 659824395826)

https://github.com/typelevel/fs2/commit/659824395826a314e0a4331535dbf1ef8bef8207
generic

How to use `new tls.TLSSocket(...)` to establish a secure connection? · Issue #43994 · nodejs/node · GitHub

https://github.com/nodejs/node/issues/43994

Affected Packages

(6 across 1 ecosystem)
Maven(6)
PackageVulnerable rangeFixed inDependents
co.fs2:fs2-io—3.2.11—
co.fs2:fs2-io_2.123.1-10-500b366 ... 3.2.9 (147 versions)3.2.11—
co.fs2:fs2-io_2.133.1-10-500b366 ... 3.2.9 (147 versions)3.2.11—
co.fs2:fs2-io_33.1-10-500b366 ... 3.2.9 (147 versions)3.2.11—
co.fs2:fs2-io_sjs1_2.133.1-10-500b366 ... 3.2.9 (147 versions)3.2.11—
co.fs2:fs2-io_sjs1_33.1-10-500b366 ... 3.2.9 (147 versions)3.2.11—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 50× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 112 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:11 UTCEG score recompute
  4. 2026-07-22 22:58 UTCEG score recompute
  5. 2026-07-22 14:06 UTCEPSS rescore
  6. 2026-07-22 14:06 UTCEPSS rescore
  7. 2026-07-21 15:22 UTCEPSS rescore
  8. 2026-07-21 15:22 UTCEPSS rescore
  9. 2026-07-20 17:05 UTCEPSS rescore
  10. 2026-07-19 14:29 UTCEPSS rescore
  11. 2026-07-19 02:27 UTCEPSS rescore
  12. 2026-07-19 02:27 UTCEPSS rescore
  13. 2026-07-18 10:03 UTCEPSS rescore
  14. 2026-07-18 10:02 UTCEPSS rescore
  15. 2026-07-16 23:39 UTCOSV refresh
  16. 2026-07-16 17:00 UTCEPSS rescore
  17. 2026-07-15 16:56 UTCEPSS rescore
  18. 2026-07-15 16:56 UTCEPSS rescore
  19. 2026-07-15 01:58 UTCEPSS rescore
  20. 2026-07-15 01:58 UTCEPSS rescore
  21. 2026-07-13 22:27 UTCEPSS rescore
  22. 2026-07-13 06:11 UTCEPSS rescore
  23. 2026-07-13 06:11 UTCEPSS rescore
  24. 2026-07-12 05:44 UTCEPSS rescore
  25. 2026-07-12 05:44 UTCEPSS rescore
Show 75 more
  1. 2026-07-11 08:25 UTCEPSS rescore
  2. 2026-07-11 08:25 UTCEPSS rescore
  3. 2026-07-09 19:07 UTCEPSS rescore
  4. 2026-07-08 15:12 UTCEPSS rescore
  5. 2026-07-07 13:44 UTCEPSS rescore
  6. 2026-07-06 16:25 UTCEPSS rescore
  7. 2026-07-06 16:25 UTCEPSS rescore
  8. 2026-07-06 02:21 UTCEPSS rescore
  9. 2026-07-06 02:21 UTCEPSS rescore
  10. 2026-07-05 02:28 UTCEPSS rescore
  11. 2026-07-05 02:28 UTCEPSS rescore
  12. 2026-07-04 06:29 UTCEPSS rescore
  13. 2026-07-04 06:29 UTCEPSS rescore
  14. 2026-07-01 15:04 UTCEPSS rescore
  15. 2026-06-30 23:20 UTCEPSS rescore
  16. 2026-06-30 23:20 UTCEPSS rescore
  17. 2026-06-29 14:04 UTCEPSS rescore
  18. 2026-06-28 22:32 UTCOSV refresh
  19. 2026-06-28 14:06 UTCEPSS rescore
  20. 2026-06-28 04:54 UTCEPSS rescore
  21. 2026-06-27 03:07 UTCEPSS rescore
  22. 2026-06-25 13:48 UTCEPSS rescore
  23. 2026-06-25 13:48 UTCEPSS rescore
  24. 2026-06-24 14:03 UTCEPSS rescore
  25. 2026-06-24 14:03 UTCEPSS rescore
  26. 2026-06-23 21:31 UTCEPSS rescore
  27. 2026-06-23 21:31 UTCEPSS rescore
  28. 2026-06-22 14:24 UTCEPSS rescore
  29. 2026-06-22 14:24 UTCEPSS rescore
  30. 2026-06-21 14:55 UTCEPSS rescore
  31. 2026-06-21 14:55 UTCEPSS rescore
  32. 2026-06-21 01:58 UTCEPSS rescore
  33. 2026-06-21 01:58 UTCEPSS rescore
  34. 2026-06-19 19:24 UTCEPSS rescore
  35. 2026-06-19 19:24 UTCEPSS rescore
  36. 2026-06-18 17:51 UTCEPSS rescore
  37. 2026-06-18 17:51 UTCEPSS rescore
  38. 2026-06-17 17:51 UTCEPSS rescore
  39. 2026-06-17 17:51 UTCEPSS rescore
  40. 2026-06-16 17:51 UTCEPSS rescore
  41. 2026-06-16 17:51 UTCEPSS rescore
  42. 2026-06-15 17:46 UTCEPSS rescore
  43. 2026-06-14 23:15 UTCEPSS rescore
  44. 2026-06-13 22:58 UTCEPSS rescore
  45. 2026-06-12 23:10 UTCEPSS rescore
  46. 2026-06-12 23:10 UTCEPSS rescore
  47. 2026-06-11 17:55 UTCOSV refresh
  48. 2026-06-11 13:58 UTCEPSS rescore
  49. 2026-06-11 13:58 UTCEPSS rescore
  50. 2026-06-10 22:16 UTCEPSS rescore
  51. 2026-06-10 13:20 UTCEPSS rescore
  52. 2026-06-08 14:15 UTCEPSS rescore
  53. 2026-06-08 14:15 UTCEPSS rescore
  54. 2026-06-07 15:23 UTCEPSS rescore
  55. 2026-06-07 15:23 UTCEPSS rescore
  56. 2026-06-07 15:23 UTCEPSS rescore
  57. 2026-06-06 13:46 UTCEPSS rescore
  58. 2026-06-06 13:46 UTCEPSS rescore
  59. 2026-06-05 22:45 UTCEPSS rescore
  60. 2026-06-05 22:45 UTCEPSS rescore
  61. 2026-06-05 06:09 UTCEPSS rescore
  62. 2026-06-05 06:09 UTCEPSS rescore
  63. 2026-06-04 13:11 UTCEPSS rescore
  64. 2026-06-04 13:11 UTCEPSS rescore
  65. 2026-06-02 20:11 UTCEPSS rescore
  66. 2026-06-02 20:11 UTCEPSS rescore
  67. 2026-06-02 20:11 UTCEPSS rescore
  68. 2026-06-01 13:50 UTCEPSS rescore
  69. 2026-06-01 13:50 UTCEPSS rescore
  70. 2026-05-31 22:29 UTCEPSS rescore
  71. 2026-05-31 22:29 UTCEPSS rescore
  72. 2026-05-31 22:29 UTCEPSS rescore
  73. 2026-05-31 00:15 UTCEPSS rescore
  74. 2026-05-31 00:15 UTCEPSS rescore
  75. 2026-05-29 13:43 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-31183?
CVE-2022-31183 is a critical vulnerability published on August 1, 2022. 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…
When was CVE-2022-31183 disclosed?
CVE-2022-31183 was first published in the National Vulnerability Database on August 1, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-31183 actively exploited?
CVE-2022-31183 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 47.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-31183?
CVE-2022-31183 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2022-31183?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-31183, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-31183

Explore →

Is Your Infrastructure Affected by CVE-2022-31183?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs