Riskcovery

CVE-2025-29847

Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass

State
Published
Severity
7.5 High
Published
Jan 19, 2026
Updated
Jan 20, 2026
Reserved
Mar 12, 2025

Read the record on cve.org

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

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCISA-ADP

Weaknesses

  • CWE-20 Improper Input Validation
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

ProductVersions
Apache LinkisApache Software Foundation
  • 1.3.0 through 1.7.0Affected

References

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