🛡️ CVE-2026-35194 — flink

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-94 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

Weakness class

CVE-2026-35194 is classified as CWE-94: Code Injection. Input is incorporated into code that the runtime evaluates, so an attacker can have their own code executed.

Affected software

CVE-2026-35194 is recorded against 5 packages.

  • flink
  • org.apache.flink:flink-table-api-java (from 2.2.0 up to 2.2.1)
  • org.apache.flink:flink-table-planner-2.12 (from 2.2.0 up to 2.2.1)
  • org.apache.flink:flink-table-runtime (from 2.2.0 up to 2.2.1)
  • unknown

Timeline and source

Published on 19 May 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.openwall.com (Web)
lists.apache.org (Web)
nvd.nist.gov (Web)

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE CWE-94
Public Exploit ✅ No
Source NVD
Published 2026-05-19
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
flink — —
org.apache.flink:flink-table-api-java 2.2.0 2.2.1
org.apache.flink:flink-table-planner-2.12 2.2.0 2.2.1
org.apache.flink:flink-table-runtime 2.2.0 2.2.1
unknown — —

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