Apache Flink CDC is vulnerable to SQL Injection through maliciously crafted identifiers

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L · score source

EPSS

• CVE-2025-62228: 0.46% estimated exploitation activity in the next 30 days; percentile 39.79 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Apache Flink CDC version 3.0.0 to before 3.5.0 are vulnerable to a SQL injection via maliciously crafted identifiers eg. crafted database name or crafted table name. Even through only the logged-in database user can trigger the attack, users are recommended to update Flink CDC version to 3.5.0 which address this issue.

Published by the source

9 Oct 2025, 15:31 UTC

Last modified by the source

5 Nov 2025, 20:48 UTC

Source last checked

26 Oct 2026, 16:40 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-wqm3-w3p6-xjgm

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# Patch Next advisory brief: CVE-2025-62228

Advisory: Apache Flink CDC is vulnerable to SQL Injection through maliciously crafted identifiers
IDs: CVE-2025-62228, GHSA-wqm3-w3p6-xjgm
Record: https://patchnext.com/advisories/cve-2025-62228 (revision 1, source checked 26 Oct 2026, 16:40 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.apache.flink:flink-connector-db2-cdc 3.5.0; org.apache.flink:flink-connector-mysql-cdc 3.5.0; org.apache.flink:flink-connector-oracle-cdc 3.5.0; org.apache.flink:flink-cdc-pipeline-connectors 3.5.0; org.apache.flink:flink-connector-sqlserver-cdc 3.5.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apache.flink:flink-connector-db2-cdc: affected >= 3.0.0, < 3.5.0; fixed in 3.5.0
- Maven org.apache.flink:flink-connector-mysql-cdc: affected >= 3.0.0, < 3.5.0; fixed in 3.5.0
- Maven org.apache.flink:flink-connector-oracle-cdc: affected >= 3.0.0, < 3.5.0; fixed in 3.5.0
- Maven org.apache.flink:flink-cdc-pipeline-connectors: affected >= 3.0.0, < 3.5.0; fixed in 3.5.0
- Maven org.apache.flink:flink-connector-sqlserver-cdc: affected >= 3.0.0, < 3.5.0; fixed in 3.5.0

## Suggested inspection (read-only)
- Maven org.apache.flink:flink-connector-db2-cdc: check the installed version with your package manager.
- Maven org.apache.flink:flink-connector-mysql-cdc: check the installed version with your package manager.
- Maven org.apache.flink:flink-connector-oracle-cdc: check the installed version with your package manager.
- Maven org.apache.flink:flink-cdc-pipeline-connectors: check the installed version with your package manager.
- Maven org.apache.flink:flink-connector-sqlserver-cdc: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.apache.flink:flink-connector-db2-cdc, org.apache.flink:flink-connector-mysql-cdc, org.apache.flink:flink-connector-oracle-cdc, org.apache.flink:flink-cdc-pipeline-connectors, org.apache.flink:flink-connector-sqlserver-cdc.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-wqm3-w3p6-xjgm (GitHub-reviewed advisory GHSA-wqm3-w3p6-xjgm lists affected ranges: Maven org.apache.flink:flink-cdc-pipeline-connectors >=3.0.0 =3.0.0 =3.0.0 =3.0.0 =3.0.0 <3.5.0)

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