GHSA-C399-Q49H-QWC8

Vulnerability from github – Published: 2026-01-19 09:30 – Updated: 2026-01-21 01:03
VLAI?
Summary
Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass
Details

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

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.linkis:linkis"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.3.0"
            },
            {
              "fixed": "1.8.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-29847"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-177",
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-21T01:03:19Z",
    "nvd_published_at": "2026-01-19T09:16:01Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in Apache Linkis.\n\nProblem Description\n\nWhen 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\u0027s checks. This bypass can trigger a vulnerability that allows unauthorized access to system files via JDBC parameters.\n\nScope of Impact\n\n\nThis issue affects Apache Linkis: from 1.3.0 through 1.7.0.\n\nSeverity level\n\n\nmoderate\nSolution\nContinuously check if the connection information contains the \"%\" character; if it does, perform URL decoding.\n\nUsers are recommended to upgrade to version 1.8.0, which fixes the issue.\n\n\n\n\nMore questions about this vulnerability can be discussed here:\u00a0 https://lists.apache.org/list?dev@linkis.apache.org:2025-9:cve",
  "id": "GHSA-c399-q49h-qwc8",
  "modified": "2026-01-21T01:03:19Z",
  "published": "2026-01-19T09:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29847"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/linkis"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/list?dev@linkis.apache.org:2025-9:cve"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/03l5rfkgdt022o75jp8x4tzpqxz8g057"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/09/19/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Linkis: Arbitrary File Read via Double URL Encoding Bypass"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.