Read the docs
TI-2025-21254 Aliases CVE-2025-29847GHSA-c399-q49h-qwc8

Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass

Priority MEDIUM 40CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

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/[email protected]:2025-9:cve

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0087 59th percentileScored 2026-11-07
Fix Fixed org.apache.linkis:linkis (Maven): 1.8.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Linkis1.3.0 – 1.7.0—No fix listedCNA
—org.apache.linkis:linkis (Maven)1.3.0 to before 1.8.01.8.0Patch availableGHSA-c399-q49h-qwc8
  • Apache Linkis VendorApache Affected 1.3.0 – 1.7.0 Fixed in — No fix listed CNA
  • org.apache.linkis:linkis (Maven) Vendor— Affected 1.3.0 to before 1.8.0 Fixed in 1.8.0 Patch available GHSA-c399-q49h-qwc8

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:linkis:*:*:*:*:*:*:*:*1.3.0 to before 1.8.0VulnerableApache
  • cpe:2.3:a:apache:linkis:*:*:*:*:*:*:*:* Versions 1.3.0 to before 1.8.0 Vulnerable ·Apache

Remediation

  • Fix · GHSA-c399-q49h-qwc8 org.apache.linkis:linkis (Maven) Fixed in 1.8.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-29847
  2. 2026-10-03 Alias added: GHSA-c399-q49h-qwc8

References

Advisory 3

Other 2

  • TI-2023-13644 Apache Linkis DatasourceManager module has a deserialization command execution CVSS 3.1CRITICAL 9.8
  • TI-2023-13643 Apache Linkis JDBC EngineCon has a deserialization command execution CVSS 3.1CRITICAL 9.8
  • TI-2023-12312 Apache Linkis publicsercice module unrestricted upload of file CVSS 3.1CRITICAL 9.8
  • TI-2023-12313 Apache Linkis Mangaer module engineConn material upload exists Zip Slip issue CVSS 3.1CRITICAL 9.8
  • TI-2023-12577 Apache Linkis gateway module token authentication bypass CVSS 3.1CRITICAL 9.1
  • TI-2022-21962 Apache Linkis (incubating): The DatasourceManager module has a serialization attack vulnerability CVSS 3.1HIGH 8.8
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences