A vulnerability in Apache Linkis.

Problem Description
When using the JDBC engine and da
When using the JDBC engine and data source functionality, if the URL parameter configured on the frontend has undergone multiple rounds of URL encoding, it may bypass the system's checks. This bypass can trigger a vulnerability that allows unauthorized access to system files via JDBC parameters.

Scope of Impact


This issue affects Apache Linkis: from 1.3.0 through 1.7.0.

Severity level


moderate
Solution
Continuously check if the connection information contains the "%" character; if it does, perform URL decoding.

Users are recommended to upgrade to version 1.8.0, which fixes the issue.




More questions about this vulnerability can be discussed here:  https://lists.apache.org/list?dev@linkis.apache.org:2025-9:cve
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-c399-q49h-qwc8 Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 21 Jan 2026 01:15:00 +0900

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 20 Jan 2026 17:45:00 +0900

Type Values Removed Values Added
First Time appeared Apache
Apache linkis
Vendors & Products Apache
Apache linkis

Mon, 19 Jan 2026 19:30:00 +0900

Type Values Removed Values Added
References

Mon, 19 Jan 2026 18:00:00 +0900

Type Values Removed Values Added
Description A vulnerability in Apache Linkis. Problem Description When using the JDBC engine and da When using the JDBC engine and data source functionality, if the URL parameter configured on the frontend has undergone multiple rounds of URL encoding, it may bypass the system's checks. This bypass can trigger a vulnerability that allows unauthorized access to system files via JDBC parameters. Scope of Impact This issue affects Apache Linkis: from 1.3.0 through 1.7.0. Severity level moderate Solution Continuously check if the connection information contains the "%" character; if it does, perform URL decoding. Users are recommended to upgrade to version 1.8.0, which fixes the issue. More questions about this vulnerability can be discussed here:  https://lists.apache.org/list?dev@linkis.apache.org:2025-9:cve
Title Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass
Weaknesses CWE-20
CWE-22
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-01-20T15:12:04.287Z

Reserved: 2025-03-12T03:28:05.936Z

Link: CVE-2025-29847

cve-icon Vulnrichment

Updated: 2026-01-19T09:11:59.096Z

cve-icon NVD

Status : Received

Published: 2026-01-19T09:16:01.237

Modified: 2026-01-20T16:16:02.410

Link: CVE-2025-29847

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-20T17:43:41Z

Weaknesses