CVE-2026-63040

HIGH
Published Aug 20, 2026 Modified Aug 27, 2026 CWE-552

Description

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 .

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CVSS v3.1 Score

8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS — Exploit Prediction

0.0051
Probability of exploitation
0.43%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-552 CWE-552

Affected Products

Vendor Product
apache inlong

References

Frequently Asked Questions

What is CVE-2026-63040? +
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 . It has a CVSS v3.1 base score of 8.1 (HIGH).
How severe is CVE-2026-63040? +
CVE-2026-63040 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0051, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-63040? +
CVE-2026-63040 affects products from apache, specifically: inlong. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-63040? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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