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

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. 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

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