What is CVE-2025-27526?

CVE-2025-27526 is a medium-severity vulnerability in Apache Inlong, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2025-05-28.

How severe is CVE-2025-27526?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-27526 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Apache Inlong

CVE-2025-27526

Deserialization of Untrusted Data vulnerability in Apache InLong. This issue affects Apache InLong: from 1.13.0 through 2.1.0. This vulnerability which can lead to JDBC Vulnerability URLEncdoe and backspace bypass. Users are advised to upgrade to Apache InLong's 2.2.0 or cherry-pick [1] to solve it. [1] https://github.com/apache/inlong/pull/11747

Vulnerability class: Insecure Deserialization

EPSS: 0.007 (49.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Apache Inlong
Apache Software Foundation Inlong — versions 1.13

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

security@apache.org (vendor-advisory, Vendor Advisory)
security@apache.org (patch, Issue Tracking)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2025-27526?: CVE-2025-27526 is a medium-severity vulnerability in Apache Inlong, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2025-05-28.
How severe is CVE-2025-27526?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-27526 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.