Is CVE-2022-39135 actively exploited?

No active exploitation of CVE-2022-39135 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-39135 be exploited remotely?

Yes. CVE-2022-39135 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-39135?

CVE-2022-39135 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-39135

CWE-611Published: September 11, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Apache Calcite 1.22.0 introduced the SQL operators EXISTS_NODE, EXTRACT_XML, XML_TRANSFORM and EXTRACT_VALUE do not restrict XML External Entity references in their configuration, making them vulnerable to a potential XML External Entity (XXE) attack. Therefore any client exposing these operators, typically by using Oracle dialect (the first three) or MySQL dialect (the last one), is affected by this vulnerability (the extent of it will depend on the user under which the application is running). From Apache Calcite 1.32.0 onwards, Document Type Declarations and XML External Entity resolution are disabled on the impacted operators.

NVD Source

Risk Analysis

Apache Calcite is vulnerable to XML External Entity (XXE) attacks when using specific SQL operators that do not restrict external entity resolution. This critical flaw allows remote attackers to potentially access sensitive information.

No public exploit is known for this vulnerability, and it is not in the CISA KEV. It is remotely exploitable.

Recommended Action

Upgrade to Apache Calcite 1.32.0 or later, where Document Type Declarations and XML External Entity resolution are disabled by default.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-39135 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.