Read the docs
TI-2020-06610 Aliases CVE-2020-8192GHSA-xw5p-hw6r-2j98

Uncontrolled resource consumption in fastify

Priority LOW 31CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

A denial of service vulnerability exists in Fastify v2.14.1 and v3.0.0-rc.4 that allows a malicious user to trigger resource exhaustion (when the allErrors option is used) with specially crafted schemas.

Why it matters now

EPSS 0.01157 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed fastify (npm): 2.15.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—fastifyFixed in v2.15.1 and v3.0.0-rc.5. v1 not affected.—No fix listedCNA
—fastify (npm)before 2.15.12.15.1Patch availableGHSA-xw5p-hw6r-2j98
  • fastify Vendor— Affected Fixed in v2.15.1 and v3.0.0-rc.5. v1 not affected. Fixed in — No fix listed CNA
  • fastify (npm) Vendor— Affected before 2.15.1 Fixed in 2.15.1 Patch available GHSA-xw5p-hw6r-2j98

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:fastify:fastify:2.14.1:*:*:*:*:node.js:*:*2.14.1Vulnerablefastify
cpe:2.3:a:fastify:fastify:3.0.0:rc4:*:*:*:node.js:*:*3.0.0 rc4Vulnerablefastify
  • cpe:2.3:a:fastify:fastify:2.14.1:*:*:*:*:node.js:*:* Versions 2.14.1 Vulnerable ·fastify
  • cpe:2.3:a:fastify:fastify:3.0.0:rc4:*:*:*:node.js:*:* Versions 3.0.0 rc4 Vulnerable ·fastify

Remediation

  • Fix · GHSA-xw5p-hw6r-2j98 fastify (npm) Fixed in 2.15.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-8192
  2. 2026-10-03 Alias added: GHSA-xw5p-hw6r-2j98

References

  • TI-2022-18664 Denial of service in Fastify via Content-Type header CVSS 3.1HIGH 7.5
  • TI-2025-23513 Fastify vulnerable to invalid content-type parsing, which could lead to validation bypass CVSS 3.1HIGH 7.5
  • TI-2026-58050 fastify vulnerable to request validation bypass via skipped boolean false schemas CVSS 3.1HIGH 7.5
  • TI-2026-58022 fastify vulnerable to header validation bypass via incomplete schema case normalization CVSS 3.1HIGH 7.5
  • TI-2026-53284 fastify vulnerable to authentication bypass via malformed URLs reaching encapsulated not-found handlers CVSS 3.1HIGH 7.5
  • TI-2026-26178 fastify vulnerable to Body Schema Validation Bypass via Leading Space in Content-Type Header CVSS 3.1HIGH 7.5
See all 15 →

Sources