CVE-2022-39135Public exploitNetwork attack vector

Local file disclosure via unrestricted external entities

Published Sep 11, 2022 · Updated Aug 3, 2024

XML external entity injection in Apache Calcite 1.22.0 through 1.31.0 allows remote attackers to read local files through XML SQL functions. XmlFunctions passes attacker-controlled XML to JAXP XPath and transformation processors without disabling DTDs or external entity resolution. Reachability requires a client to expose the affected functions, usually through Oracle or MySQL dialect support; successful queries disclose files readable by the host process.

CVSS severity9.8
Critical
EPSS probability2.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML external entity injection in Apache Calcite 1.22.0 through 1.31.0 allows remote attackers to read local files through XML SQL functions. XmlFunctions passes attacker-controlled XML to JAXP XPath and transformation processors without disabling DTDs or external entity resolution. Reachability requires a client to expose the affected functions, usually through Oracle or MySQL dialect support; successful queries disclose files readable by the host process.

The record

CVE
CVE-2022-39135
Published
Sep 11, 2022
Updated
Aug 3, 2024
Vendor
The Apache Software Foundation
Product
Apache Calcite
Classifications
CWE-611, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 11, 2022CVE 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=1.22.0 <1.32.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Calciteversion=1.22.0 <1.32.0

Published CVSS scores

9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1005Data from Local System

Public exploit references

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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