How severe is CVE-2022-45143?

CVE-2022-45143 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2022-45143 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-45143?

CVE-2022-45143 primarily affects Apache Tomcat. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-45143?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-45143 published?

CVE-2022-45143 was published on 2023-01-03 and last updated on 2026-06-17.

CVE-2022-45143

CVE-2022-45143 is a high-severity vulnerability in Apache Tomcat with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-116.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-116
Affected product: Apache Tomcat
Published: 2023-01-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-45143?: 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.
How severe is CVE-2022-45143?: CVE-2022-45143 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2022-45143 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-45143?: CVE-2022-45143 primarily affects Apache Tomcat. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-45143?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-45143 published?: CVE-2022-45143 was published on 2023-01-03 and last updated on 2026-06-17.

References

Affected products (20)

cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:8.5.83:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone13:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone14:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone15:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone16:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone17:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone2:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone3:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone4:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone5:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone6:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone7:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone8:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.0:milestone9:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:10.1.1:*:*:*:*:*:*:*

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