Resource exhaustion in Fastify

CVE-2020-8192

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.

Vulnerability class: DoS (Denial of Service)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (65.8th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-8192: held from 0.012 to 0.012.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

  • Fastify — versions 2.14.1, 3.0.0
  • Fastify — versions Fixed in v2.15.1 and v3.0.0-rc.5. v1 not affected.

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-8192?
CVE-2020-8192 is a medium-severity vulnerability in Fastify, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2020-07-30.
How severe is CVE-2020-8192?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-8192 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.