CVE-2022-45143Network attack vector

JSON output manipulation via unescaped error fields

Published Jan 3, 2023 · Updated Aug 3, 2024

JSON injection in Apache Tomcat 8.5.83, 9.0.40 through 9.0.68, and 10.1.0-M1 through 10.1.1 allows remote attackers to manipulate error responses. JsonErrorReportValve concatenates user-influenced type, message, and description strings into a JSON document without escaping quotation marks, backslashes, or control characters. The valve must generate an error response containing attacker-controlled data; the resulting malformed or attacker-shaped JSON can mislead downstream consumers.

CVSS severity7.5
High
EPSS probability2.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

JSON injection in Apache Tomcat 8.5.83, 9.0.40 through 9.0.68, and 10.1.0-M1 through 10.1.1 allows remote attackers to manipulate error responses. JsonErrorReportValve concatenates user-influenced type, message, and description strings into a JSON document without escaping quotation marks, backslashes, or control characters. The valve must generate an error response containing attacker-controlled data; the resulting malformed or attacker-shaped JSON can mislead downstream consumers.

The record

CVE
CVE-2022-45143
Published
Jan 3, 2023
Updated
Aug 3, 2024
Vendor
The Apache Software Foundation
Product
Apache Tomcat
Classifications
CWE-116, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.1.0-M1 <=10.1.1
  2. Affected versionversion=8.5.83
  3. Affected versionversion=9.0.40 <=9.0.68

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Tomcatversion=10.1.0-M1 <=10.1.1; version=8.5.83; version=9.0.40 <=9.0.68

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-116Improper Encoding or Escaping of Output
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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