CVE-2022-43766Network attack vector

Service interruption via unbounded REGEXP evaluation

Published Oct 26, 2022 · Updated May 7, 2025

ReDoS in Apache IoTDB 0.12.2 through 0.12.6 and 0.13.0 through 0.13.2 allows remote attackers to interrupt database service. The REGEXP query evaluator runs attacker-controlled patterns in Java 8's backtracking regular-expression engine without bounding evaluation cost. Network access to the query service and a Java 8 server runtime are required; a crafted query consumes processing time and interrupts availability.

CVSS severity7.5
High
EPSS probability1.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

ReDoS in Apache IoTDB 0.12.2 through 0.12.6 and 0.13.0 through 0.13.2 allows remote attackers to interrupt database service. The REGEXP query evaluator runs attacker-controlled patterns in Java 8's backtracking regular-expression engine without bounding evaluation cost. Network access to the query service and a Java 8 server runtime are required; a crafted query consumes processing time and interrupts availability.

The record

CVE
CVE-2022-43766
Published
Oct 26, 2022
Updated
May 7, 2025
Vendor
The Apache Software Foundation
Product
Apache IoTDB
Classifications
CWE-400, T1499.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 26, 2022CVE publishedPublication date reported by the CVE source.
  2. May 7, 2025Record 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=0.12.2 <unspecified
  2. Affected versionversion=unspecified <=0.13.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache IoTDBversion=0.12.2 <unspecified; version=unspecified <=0.13.2

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.002Service Exhaustion

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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