# CVE-2026-63043: Apache InLong relative path traversal in Agent

Source: https://junglewise.ai/threats/cve-2026-63043-apache-inlong-relative-path-traversal-in-agent  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-20. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-63043 · Severity: high · CVSS 7.5 · Published 2026-08-20

Apache InLong is a data integration platform used to collect and move data between systems. A path traversal vulnerability in the Agent component allows attackers to read arbitrary files from the host filesystem, potentially exposing sensitive configuration files, credentials, or other protected data.

Technologies: [Apache Inlong](https://junglewise.ai/threats/technologies/inlong). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-63043 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-63043 being exploited in the wild.

**How severe is CVE-2026-63043?** High severity, with a CVSS score of 7.5, published 20 August 2026.

**Which products and versions are affected?** Apache Inlong 2.0.0 to 2.3.x.

**Is there a fix for CVE-2026-63043?** A patch was published on 2026-08-20: Fix available in version 2.4.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-63043 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-63043?** Check whether you run Apache Inlong at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A relative path traversal vulnerability exists in Apache InLong's Agent component due to insufficient validation of file source paths. An attacker can craft malicious input using path traversal sequences (e.g., ../) to escape the intended directory and read arbitrary files from the Agent host filesystem. The vulnerability affects versions 2.0.0 through 2.3.x; exploitation requires network access to the Agent. The vulnerability has been patched in version 2.4.0, and users are advised to upgrade or apply the fix from https://github.com/apache/inlong/pull/12146.

## Affected products

- Apache InLong 2.0.0 to 2.3.x

## Timeline

- 2026-08-20: disclosed
- 2026-08-20: patched: Fix available in version 2.4.0

## References

- [https://lists.apache.org/thread/0ohn861tzd9g7nsosd6oz3of6dvhvqnk](https://lists.apache.org/thread/0ohn861tzd9g7nsosd6oz3of6dvhvqnk)
- [http://www.openwall.com/lists/oss-security/2026/08/20/16](http://www.openwall.com/lists/oss-security/2026/08/20/16)

## Related threats

- [Apache InLong argument injection in Agent Installer ModuleManager](https://junglewise.ai/threats/cve-2026-63046-apache-inlong-argument-injection-in-agent-installer-modulemanager)
- [Apache InLong server-side request forgery via testConnection endpoint](https://junglewise.ai/threats/cve-2026-63044-apache-inlong-server-side-request-forgery-via-testconnection)
- [Apache InLong missing authorization in DataNode management](https://junglewise.ai/threats/cve-2026-63042-apache-inlong-missing-authorization-in-datanode-management)
- [Apache InLong missing authorization in StreamSource](https://junglewise.ai/threats/cve-2026-63040-apache-inlong-missing-authorization-in-streamsource)
- [Apache InLong SQL injection in AuditAlertRuleService](https://junglewise.ai/threats/cve-2026-63039-apache-inlong-sql-injection-in-auditalertruleservice)