CVE-2026-35194Network attack vector

Authenticated code execution via unescaped SQL literals

Published May 15, 2026 · Updated May 15, 2026

Code injection in SQL code generation in Apache Flink 1.15.0 through 1.20.x and 2.0.0 through 2.x allows remote authenticated users to execute code. JSON code generation fails to escape row field names, while LIKE code generation embeds an unescaped ESCAPE literal in generated Java. Query-submission privileges and a crafted SQL statement are required, and injected expressions run on TaskManagers with the Flink process's access.

CVSS severity8.1
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in SQL code generation in Apache Flink 1.15.0 through 1.20.x and 2.0.0 through 2.x allows remote authenticated users to execute code. JSON code generation fails to escape row field names, while LIKE code generation embeds an unescaped ESCAPE literal in generated Java. Query-submission privileges and a crafted SQL statement are required, and injected expressions run on TaskManagers with the Flink process's access.

The record

CVE
CVE-2026-35194
Published
May 15, 2026
Updated
May 15, 2026
Vendor
The Apache Software Foundation
Product
Apache Flink
Classifications
CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.15.0 <1.20.4,2.0.2,2.1.2,2.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Flinkversion=1.15.0 <1.20.4,2.0.2,2.1.2,2.2.1

Published CVSS scores

8.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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