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CVE

CVE-2025-29847

Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass
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CVE

CVE-2025-29847

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

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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.

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More questions about this vulnerability can be discussed here:  https://lists.apache.org/list?dev@linkis.apache.org:2025-9:cve

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
C
H
U
-

Related Resources

No items found.

References

https://nvd.nist.gov/vuln/detail/CVE-2025-29847, https://github.com/apache/linkis, https://lists.apache.org/list?dev@linkis.apache.org:2025-9:cve, https://lists.apache.org/thread/03l5rfkgdt022o75jp8x4tzpqxz8g057, http://www.openwall.com/lists/oss-security/2025/09/19/2

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00143%
EPSS Percentile
0.34205%
Introduced Version
1.3.0
Fix Available
1.8.0

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