CVE-2025-27531

Deserialization of Untrusted Data vulnerability in Apache InLong. 

This issue affects Apache InLong: from 1.13.0 before 2.1.0,

this issue would allow an authenticated attacker to read arbitrary files by double writing the param.

Users are recommended to upgrade to version 2.1.0, which fixes the issue.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://lists.apache.org/thread/r62lkqrr739wvcb60j6ql6q63rh4bxx5
• http://www.openwall.com/lists/oss-security/2025/02/28/2