Headline
GHSA-c399-q49h-qwc8: Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass
A vulnerability in Apache Linkis.
Problem Description
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
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- GitHub Advisory Database
- GitHub Reviewed
- CVE-2025-29847
Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass
High severity GitHub Reviewed Published Jan 19, 2026 to the GitHub Advisory Database • Updated Jan 21, 2026
Package
maven org.apache.linkis:linkis (Maven)
Affected versions
>= 1.3.0, < 1.8.0
Description
Published to the GitHub Advisory Database
Jan 19, 2026
Last updated
Jan 21, 2026