CVE-2026-35194CWE-94

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

High · published May 15, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
50.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00656 · 50.8th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-05-15T15:27Z
EPSS history
Timeline
  • 15 MAY 15:27Z
    Apache Flink: Remote code execution via SQL injection in code generation
    cvelistv5