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.

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History

Fri, 15 May 2026 22:30:00 +0000

Type Values Removed Values Added
References

Fri, 15 May 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache flink
Vendors & Products Apache
Apache flink
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 15 May 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title Apache Flink: Remote code execution via SQL injection in code generation
Weaknesses CWE-94
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-05-15T21:23:25.726Z

Reserved: 2026-04-01T18:39:08.929Z

Link: CVE-2026-35194

cve-icon Vulnrichment

Updated: 2026-05-15T21:23:25.726Z

cve-icon NVD

Status : Received

Published: 2026-05-15T16:16:14.340

Modified: 2026-05-15T22:16:51.900

Link: CVE-2026-35194

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-15T21:00:09Z

Weaknesses