Apache Kylin: Files or Directories Accessible to External Parties
CVE-2025-61734 is a high-severity files or directories accessible to external parties vulnerability in Apache Kylin from Apache, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Apache Kylin versions: 4.0.0 through 5.0.2. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 28.8% chance of exploitation within 30 days, which is in the top 1.82% of all scored CVEs.
EPSS places it among the vulnerabilities most likely to be exploited soon.
What to do
- Update Kylin to 5.0.3 or a later version.
- Read the advisory on lists.apache.org for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Apache | Apache Kylin | 4.0.0 through 5.0.2 | Not stated |
| Apache | Kylin | 4.0.0 up to, but not including, 5.0.3 | 5.0.3 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CISA (ADP).
Official description
Files or Directories Accessible to External Parties vulnerability in Apache Kylin. You are fine as long as the Kylin's system and project admin access is well protected. This issue affects Apache Kylin: from 4.0.0 through 5.0.2. Users are recommended to upgrade to version 5.0.3, which fixes the issue.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Files or Directories Accessible to External Parties
The product makes files or directories accessible to unauthorized actors, even though they should not be.
How developers prevent this class of flaw
- When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to disable public access.
More Files or Directories Accessible to External Parties vulnerabilities (CWE-552)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- lists.apache.org/thread/z705g7sn3g0bkchlqbo1hz1tyqorn4d2Issue Tracking
Other references
Other vulnerabilities in Apache Kylin
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.3 High severity
- 7.5 High severity
Recent Files or Directories Accessible to External Parties vulnerabilities
- 7.3 High severity
- 8.5 High severity
- 7.5 High severity
- 7.8 High severity
- 10.0 Critical severity
- 8.1 High severity
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