# CVE-2025-29847: linkis — Fixed in 1.8.0

☕

☕ Maven

Not in CISA KEV

HIGH severity

# CVE-2025-29847 — linkis

HIGH 

CVE-2025-29847 is a high-severity (CVSS 7.5) Improper Input Validation vulnerability in org.apache.linkis:linkis. A fix is available for org.apache.linkis:linkis — see the affected versions and patch details below.

Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass

Also known as[GHSA-c399-q49h-qwc8](/vulnerability/GHSA-c399-q49h-qwc8)

Published

Jan 19, 2026

Updated

Nov 8, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

## Exploitation Status

### No confirmed exploitation observed yet

-   CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
-   CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-29847.

## EPSS Exploitation Probability

[via FIRST.org ↗](https://www.first.org/epss/)

0.9%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs59th percentile — riskier than 59% of all scored CVEsHighest risk

0.00%0.46%0.91%1.37%0.1%0.9%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from [FIRST.org EPSS](https://www.first.org/epss/).

## How urgent is this, really

## Where this sits among everything scored

## Real-World Exposure

1 pkg affected

☕`org.apache.linkis:linkis`

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

## 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](https://lists.apache.org/list?dev@linkis.apache.org:2025-9:cve)

## Affected Packages

1 total 1 fixed

Ecosystem

Package

Vulnerable range

Fix

☕Maven

`org.apache.linkis:linkis` 

≥ 1.3.0&&< 1.8.0

1.8.0`org.apache.linkis:linkis:1.8.0`

## Affected Products

1 product · 1 configurations

Application

`linkis`apache

≥ 1.3.0 && < 1.8.0

range

## Detection & mitigation playbook

Open-source dependency

1.  ### Detect
    
    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.linkis:linkis, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
    
2.  ### Fix
    
    Update org.apache.linkis:linkis to 1.8.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-29847 is resolved across your whole dependency graph.
    
3.  ### Workarounds
    
    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
    

## Frequently Asked Questions

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 UR

O3 Security · Impact-Aware SCA

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