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CVE-2022-2053· NVD / CVE Program· CNA redhat

When a POST request comes through AJP and the request exceeds the max-post-size limit (maxEntitySize), Undertow's AjpServerRequestConduit im

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 64.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: undertow (Debian:14) 2.2.18-1; io.undertow:undertow-core (Maven) 2.3.0.Alpha2, 2.2.19.Final; eap7-activemq-artemis (Red Hat:jboss_enterprise_application_platform_eus:7.1::el7) 0:1.5.5.016-1.redhat_00001.1.ep7.el7.

Low priority for now. Upgrade to undertow (Debian:14) 2.2.18-1; io.undertow:undertow-core (Maven) 2.3.0.Alpha2, 2.2.19.Final; eap7-activemq-artemis (Red Hat:jboss_enterprise_application_platform_eus:7.1::el7) 0:1.5.5.016-1.redhat_00001.1.ep7.el7 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

When a POST request comes through AJP and the request exceeds the max-post-size limit (maxEntitySize), Undertow's AjpServerRequestConduit implementation closes a connection without sending any response to the client/proxy. This behavior results in that a front-end proxy marking the backend worker (application server) as an error state and not forward requests to the worker for a while. In mod_cluster, this continues until the next STATUS request (10 seconds intervals) from the application server updates the server state. So, in the worst case, it can result in "All workers are in error state" and mod_cluster responds "503 Service Unavailable" for a while (up to 10 seconds). In mod_proxy_balancer, it does not forward requests to the worker until the "retry" timeout passes. However, luckily, mod_proxy_balancer has "forcerecovery" setting (On by default; this parameter can force the immediate recovery of all workers without considering the retry parameter of the workers if all workers of a balancer are in error state.). So, unlike mod_cluster, mod_proxy_balancer does not result in responding "503 Service Unavailable". An attacker could use this behavior to send a malicious request and trigger server errors, resulting in DoS (denial of service). This flaw was fixed in Undertow 2.2.19.Final, Undertow 2.3.0.Alpha2.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Aug 5, 2022
Updated
Jun 17, 2026
EPSS
1.0% · 64th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
redhatintegration camel k
redhatjboss fuse
redhatundertow

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • redhat integration camel kall versions
  • redhat jboss fuse7.0.0
  • redhat undertowbefore 2.2.19
  • redhat undertow2.3.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a Undertow

    • Fixed in Undertow 2.2.19.Final, Undertow 2.3.0.Alpha2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:14undertowbefore 2.2.18-12.2.18-1
Mavenio.undertow:undertow-corefrom 2.3.0.Alpha1 · before 2.3.0.Alpha22.3.0.Alpha2
Mavenio.undertow:undertow-corebefore 2.2.19.Final2.2.19.Final
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemisbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-clibefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-commonsbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-core-clientbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-dtobefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-hornetq-protocolbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-hqclient-protocolbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-jdbc-storebefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-jms-clientbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-jms-serverbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-journalbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-nativebefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-rabefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-selectorbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-serverbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-activemq-artemis-service-extensionsbefore 0:1.5.5.016-1.redhat_00001.1.ep7.el70:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-artemis-nativebefore 1:1.5.5.016-1.redhat_00001.1.ep7.el71:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-artemis-native-debuginfobefore 1:1.5.5.016-1.redhat_00001.1.ep7.el71:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-artemis-native-wildflybefore 1:1.5.5.016-1.redhat_00001.1.ep7.el71:1.5.5.016-1.redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-jboss-xnio-basebefore 0:3.5.11-1.Final_redhat_00001.1.ep7.el70:3.5.11-1.Final_redhat_00001.1.ep7.el7
Red Hat:jboss_enterprise_application_platform_eus:7.1::el7eap7-jsoupbefore 0:1.14.2-1.redhat_00002.1.ep7.el70:1.14.2-1.redhat_00002.1.ep7.el7

+54

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0084A flaw was found in XNIO, specifically in the notifyReadClosed method.
    30Monitor
  • CVE-2020-14326A vulnerability was found in RESTEasy, where RootNode incorrectly caches routes.
    30Monitor
  • CVE-2022-2764A flaw was found in Undertow.
    19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:undertow2.2.18-1 · Debian:14Package registry (OSV)
Maven:io.undertow:undertow-core2.2.19.FinalPackage registry (OSV)
Maven:io.undertow:undertow-core2.3.0.Alpha2Package registry (OSV)
red hat:eap7-activemq-artemis0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-cli0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-commons0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-core-client0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-dto0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-hornetq-protocol0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-hqclient-protocol0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-jdbc-store0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-jms-client0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-activemq-artemis-jms-server0:1.5.5.016-1.redhat_00001.1.ep7.el7 · Red Hat:jboss_enterprise_application_platform_eus:7.1::el7Package registry (OSV)
red hat:eap7-snakeyaml0:1.31.0-1.redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)
red hat:eap7-undertow0:2.2.19-1.SP2_redhat_00001.1.el7eap · Red Hat:jboss_enterprise_application_platform:7.4::el7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
function expand(node) {  return node.children.map(expand);}

Fixed

ts
const MAX_DEPTH = 32;function expand(node, depth = 0) {  if (depth > MAX_DEPTH) throw new Error("too deep");  return node.children.map((c) => expand(c, depth + 1));}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records