Vulnerability Description
Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Airlift | Aircompressor | < 2.0.3 |
Related Weaknesses (CWE)
References
- https://github.com/airlift/aircompressor/commit/f2b489b398779b40c1ee29ddb11d7edePatch
- https://github.com/airlift/aircompressor/commit/ff12c4d5757c9d6d1de3d39a10402f1fPatch
- https://github.com/airlift/aircompressor/security/advisories/GHSA-vx9q-rhv9-3jvgMitigationVendor Advisory
FAQ
What is CVE-2025-67721?
CVE-2025-67721 is a vulnerability with a CVSS score of 7.5 (HIGH). Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor ...
How severe is CVE-2025-67721?
CVE-2025-67721 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-67721?
Check the references section above for vendor advisories and patch information. Affected products include: Airlift Aircompressor.