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CVE-2025-27526: Apache InLong: JDBC Vulnerability For URLEncode and backspace bypass

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-28 · updated 2026-06-17
• Weakness: CWE-502

Description

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

Affected products

• Apache Software Foundation Apache InLong: from 1.13.0 before 2.2.0 — fixed in 2.2.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache InLong 2.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/apache/inlong/pull/11747
• https://lists.apache.org/thread/4t4sqscm7xdqn883dyjy40qk6ncf26xf
• http://www.openwall.com/lists/oss-security/2025/05/28/1

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