CVE-2026-35194

HIGH

Apache Flink: Remote code execution via SQL injection in code generation

Title source: cna
STIX 2.1

Description

Code injection in SQL code generation in Apache Flink 1.15.0 through 1.20.x and 2.0.0 through 2.x allows authenticated users with query submission privileges to execute arbitrary code on TaskManagers via maliciously crafted SQL queries. The vulnerability affects JSON functions (1.15.0+) and LIKE expressions with ESCAPE clauses (1.17.0+). User-controlled strings are interpolated into generated Java code without proper escaping, allowing attackers to break out of string literals and inject arbitrary expressions. Users are recommended to upgrade to either version 1.20.4, 2.0.2, 2.1.2 or 2.2.1, which fixes this issue.

References (2)

Core 2

Scores

CVSS v3 8.1
EPSS 0.0005
EPSS Percentile 16.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (15)
apache/flink 2.2.0 (3 CPE variants)
apache/flink 1.15.0 - 1.20.4
Apache Software Foundation/Apache Flink 1.15.0 - 1.20.4,2.0.2,2.1.2,2.2.1
org.apache.flink/flink-table-api-java 1.15.0 - 1.20.4Maven
org.apache.flink/flink-table-api-java 2.0.0 - 2.0.2Maven
org.apache.flink/flink-table-api-java 2.1.0 - 2.1.2Maven
org.apache.flink/flink-table-api-java 2.2.0 - 2.2.1Maven
org.apache.flink/flink-table-planner_2.12 1.15.0 - 1.20.4Maven
org.apache.flink/flink-table-planner_2.12 2.0.0 - 2.0.2Maven
org.apache.flink/flink-table-planner_2.12 2.1.0 - 2.1.2Maven
... and 5 more
Published May 15, 2026
Tracked Since May 15, 2026