How severe is CVE-2022-45143?

CVE-2022-45143 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2022-45143?

CVE-2022-45143 affects the following packages: org.apache.tomcat.embed:tomcat-embed-core (Maven), org.apache.tomcat.embed:tomcat-embed-core (Maven), org.apache.tomcat.embed:tomcat-embed-core (Maven), org.apache.tomcat:tomcat-catalina (Maven), org.apache.tomcat:tomcat-util (Maven), org.apache.tomcat:tomcat-util (Maven). Ecosystems affected: Maven.

How do I fix CVE-2022-45143?

Update org.apache.tomcat.embed:tomcat-embed-core to 8.5.84 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-45143 is resolved across your whole dependency graph.

How do I detect CVE-2022-45143 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.tomcat.embed:tomcat-embed-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2022-45143 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2022-45143 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-45143 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2022-45143?

CVE-2022-45143 has an EPSS (Exploit Prediction Scoring System) score of 2.7%, placing it in the 86th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2022-45143?

CVE-2022-45143 is classified as CWE-116 (CWE-116). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2022-45143 published, and has it been updated?

CVE-2022-45143 was published on January 3, 2023 and was last updated on October 29, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

HIGH severity

CVE-2022-45143 — tomcat-embed-core

HIGHFix: apache/tomcat@0cab3a5

CVE-2022-45143 is a high-severity (CVSS 7.5) CWE-116 vulnerability in org.apache.tomcat.embed:tomcat-embed-core. A fix is available for org.apache.tomcat.embed:tomcat-embed-core — see the affected versions and patch details below.

Apache Tomcat: JsonErrorReportValve escaping

Also known asBIT-tomcat-2022-45143GHSA-rq2w-37h9-vg94

Published

Jan 3, 2023

Updated

Oct 29, 2026

Affected

6 pkgs

Patched

6 / 6

Exploits

None indexed

Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-45143.

EPSS Exploitation Probability

via FIRST.org ↗

2.7%probability of exploitation in next 30 days

Lower Risk+0.10%

Lower risk than most CVEs86th percentile — riskier than 86% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

6 pkgs affected

☕org.apache.tomcat.embed:tomcat-embed-core☕org.apache.tomcat.embed:tomcat-embed-core☕org.apache.tomcat.embed:tomcat-embed-core☕org.apache.tomcat:tomcat-catalina☕org.apache.tomcat:tomcat-util☕org.apache.tomcat:tomcat-util

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

The JsonErrorReportValve in Apache Tomcat 8.5.83, 9.0.40 to 9.0.68 and 10.1.0-M1 to 10.1.1 did not escape the type, message or description values. In some circumstances these are constructed from user provided data and it was therefore possible for users to supply values that invalidated or manipulated the JSON output.

Affected Packages

6 total 6 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.tomcat.embed:tomcat-embed-core`	≥ 8.5.83&&< 8.5.84	8.5.84`org.apache.tomcat.embed:tomcat-embed-core:8.5.84`
☕Maven	`org.apache.tomcat.embed:tomcat-embed-core`	≥ 9.0.40&&< 9.0.69	9.0.69`org.apache.tomcat.embed:tomcat-embed-core:9.0.69`
☕Maven	`org.apache.tomcat.embed:tomcat-embed-core`	≥ 10.1.0&&< 10.1.2	10.1.2`org.apache.tomcat.embed:tomcat-embed-core:10.1.2`
☕Maven	`org.apache.tomcat:tomcat-catalina`	≥ 10.1.0&&< 10.1.2	10.1.2`org.apache.tomcat:tomcat-catalina:10.1.2`
☕Maven	`org.apache.tomcat:tomcat-util`	≥ 8.5.83&&< 8.5.84	8.5.84`org.apache.tomcat:tomcat-util:8.5.84`
☕Maven	`org.apache.tomcat:tomcat-util`	≥ 9.0.40&&< 9.0.69	9.0.69`org.apache.tomcat:tomcat-util:9.0.69`

Affected Products

1 product · 20 configurations

Application

tomcatapache

≥ 9.0.40 && < 9.0.69

3 versions

8.5.8310.1.010.1.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.tomcat.embed:tomcat-embed-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.tomcat.embed:tomcat-embed-core to 8.5.84 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-45143 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatLow

Although it may be rated as CVSS 7.5, it's still considered a low impact flaw as according to the advisory report from Apache, user controlled data may occur in specific cases only and may alter some specific fields only. Red Hat Satellite does not include the affected Apache Tomcat, however, Tomcat is shipped with…

Product	Fixed in	Advisory
Red Hat Enterprise Linux 8	`tomcat-1:9.0.87-1.el8_10.1`	RHSA-2024:3666
Red Hat Enterprise Linux 8.8 Extended Update Support	`tomcat-1:9.0.87-1.el8_8.2`	RHSA-2024:3814
Red Hat Enterprise Linux 9	`tomcat-1:9.0.87-1.el9_4.1`	RHSA-2024:3307
Red Hat Fuse 7.12	`tomcat`	RHSA-2023:3954
Red Hat JBoss Web Server 5	`jws5-tomcat`	RHSA-2023:1664
Red Hat JBoss Web Server 5.7 on RHEL 7	`jws5-tomcat-0:9.0.62-13.redhat_00011.1.el7jws`	RHSA-2023:1663
Red Hat support for Spring Boot 2.7.13	`tomcat`	RHSA-2023:4612

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2022-45143 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

7.5/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Raw vector

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

CWE Classification

CWE-116CWE-116

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

OpenSSF Scorecard

Package health score

tomcat

6.0/10

Code-Review1/10

Maintained10/10

Branch-Protection3/10

Assessed Nov 2, 2026

Timeline

Disclosed

Jan 3, 2023

Last updated

Oct 29, 2026

Identifiers

CVE-2022-45143

GHSA-rq2w-37h9-vg94

BIT-tomcat-2022-45143

References

Advisorygithub.com · CVE 2022 45143.json Advisorylists.apache.org · yqkd183xrw3wqvnpcg3osbcryq85fkzj Advisorynvd.nist.gov · CVE 2022 45143 Advisorysecurity.gentoo.org · 202305 37 Advisorysecurity.netapp.com · ntap 20230216 0009 Webgithub.com · 0cab3a56bd89f70e7481bb0d68395dc7e130dbbf Webgithub.com · 6a0ac6a438cbbb66b6e9c5223842f53bf0cb50aa Webgithub.com · b336f4e58893ea35114f1e4a415657f723b1298e Packagegithub.com · tomcat

Related vulnerabilities

This CVE is high severity; 7 of 8 other CVEs affecting tomcat-embed-core are rated as high or higher (top: critical).

CVE-2026-65905CVE-2026-65637CVE-2026-65182CVE-2026-68525CVE-2026-55956CVE-2026-55957CVE-2026-53404CVE-2026-55276

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 29, 2026

CVE-2022-45143 — tomcat-embed-core

Exploitation Status

No confirmed exploitation observed yet

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Fixing This On Your OS

Frequently Asked Questions

Is CVE-2022-45143 in your dependencies?