# CVE-2026-93452: snappy-java buffer overflow in compress

Source: https://junglewise.ai/threats/cve-2026-93452-snappy-java-buffer-overflow-in-compress  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-18. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-93452 · Severity: high · CVSS 7.5 · Published 2026-09-18

snappy-java is a Java compression library used to reduce data size in applications. A buffer overflow vulnerability in the compression function allows attackers to supply data that crashes the Java runtime, causing service outages and potential data corruption.

Technologies: [Xerial Snappy-Java](https://junglewise.ai/threats/technologies/snappy-java). Vendors: [Xerial](https://junglewise.ai/threats/vendors/xerial).

## Quick answers

**Is CVE-2026-93452 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-93452 being exploited in the wild.

**How severe is CVE-2026-93452?** High severity, with a CVSS score of 7.5, published 18 September 2026.

**Which products and versions are affected?** Xerial Snappy-Java through 1.1.10.8.

**Is there a fix for CVE-2026-93452?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-93452 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-93452?** Check whether you run Xerial Snappy-Java at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A buffer overflow exists in the Snappy.compress(ByteBuffer, ByteBuffer) method, where incompressible input data can exceed the destination buffer's remaining capacity, causing writes past the buffer boundary. This off-heap memory corruption can trigger JVM termination. The vulnerability affects snappy-java through version 1.1.10.8. The attack requires the ability to pass untrusted data to the compress method; no authentication or special privilege is required beyond application-level access to the API.

## Affected products

- Xerial snappy-java through 1.1.10.8

## Timeline

- 2026-09-18: disclosed

## References

- [https://repo1.maven.org/maven2/org/xerial/snappy-java/](https://repo1.maven.org/maven2/org/xerial/snappy-java/)
- [https://github.com/xerial/snappy-java](https://github.com/xerial/snappy-java)

## Related threats

- [snappy-java buffer overflow in arrayCopy](https://junglewise.ai/threats/cve-2026-116590-snappy-java-is-a-java-port-of-the-snappy-a-fast-c-compresser)
- [snappy-java unbounded memory allocation in decompression](https://junglewise.ai/threats/duplicate-advisory-snappy-java-unbounded-memory-allocation-from-ac3e5e8e)
- [Xerial snappy-java unbounded memory allocation](https://junglewise.ai/threats/cve-2026-108106-xerial-snappy-java-before-1-1-10-9-contains-an-unbounded-memory)
- [Xerial snappy-java double release vulnerability in SnappyFramedInputStream](https://junglewise.ai/threats/cve-2026-108104-xerial-snappy-java-from-1-1-7-4-before-1-1-10-10-contains-a)
- [snappy-java buffer overflow in Snappy.uncompress*Array](https://junglewise.ai/threats/cve-2026-93451-snappy-java-buffer-overflow-in-snappy-uncompress-array)