Skip to content
Fencer Vulns
high 7.5

CVE-2020-14326 json

RESTEasy 4.5.5.Final in hash flooding

published 2021-06-02 5 y ago modified 2026-06-17 4 mo ago also GHSA-37g7-8vjj-pjpj , EUVD-2022-1284

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

A vulnerability was found in RESTEasy, where RootNode incorrectly caches routes. This issue results in hash flooding, leading to slower requests with higher CPU time spent searching and adding the entry. This flaw allows an attacker to cause a denial of service.

Patch / fix

  • maven org.jboss.resteasy:resteasy-bom 4.5.6.Final
  • redhat resteasy 4.5.6

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-14326 updated cvss 7.5

RESTEasy: Caching routes in RootNode may result in DoS

  • Red Hat Integration Camel Quarkus 1 resteasy
    affected: no fix available
  • Red Hat build of Quarkus 1.3.4 SP1
    fixed: vendor fix RHSA-2020:3248
  • Red Hat Fuse 7.8.0
    fixed: vendor fix RHSA-2020:5568
  • Red Hat Integration
    fixed: vendor fix RHSA-2021:4918
  • Red Hat Integration Camel Quarkus 2
    fixed: vendor fix RHSA-2021:4767
  • Red Hat Enterprise Linux 7 resteasy-base, resteasy-base-tjws, resteasy-base-jaxrs, resteasy-base-client, resteasy-base-javadoc, resteasy-base-jaxrs-all, +7 more Red Hat Enterprise Linux 8 resteasy, resteasy-javadoc Red Hat JBoss Enterprise Application Platform 6 resteasy Red Hat JBoss Enterprise Application Platform 7 resteasy-core Red Hat JBoss Enterprise Application Platform Continuous Delivery resteasy
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.jboss.resteasy:resteasy-bom
<4.5.6.Final
4.5.6.Final

Affected products

  • n/a RESTEasy

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.