ReviewHigh

CVE-2026-63040

Apache Software Foundation Apache InLong, inlong

Files or Directories Accessible to External Parties vulnerability in Apache InLong. StreamSource performs no authorization check, any authenticated user can logically delete ALL stream sources. This issue affects Apache InLong: from 2.0.0 before 2.4.0. Users are advised to upgrade to Apache InLong's 2.4.0 or cherry-pick [1] to solve it. [1] https://github.com/apache/inlong/pull/12145 .

CVSS: 8.1
EPSS: -
CISA KEV: Not listed
Published: 2026.08.21

PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability-

Technical severityCVSS 8.1

Vulnerability overview

Affected product and versions

Product: Apache Software Foundation Apache InLong, inlong
Affected versions: >= 2.0.0 < 2.4.0
Fixed versions: Verify the fixed release separately for each affected product line

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Apache Software Foundation Apache InLong, inlong and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE: CWE-552