What’s Vulnerable › Vulnerabilities

CVE-2026-108106: Xerial snappy-java before 1.1.10.9 Unbounded Memory Allocation Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-09 · updated 2026-10-13
• Weakness: CWE-789

Description

Xerial snappy-java before 1.1.10.9 contains an unbounded memory allocation vulnerability that allows attackers to exhaust JVM memory by declaring a large uncompressed length in compressed input. Attackers can supply a few crafted bytes to Snappy.uncompress, uncompressString, SnappyInputStream or SnappyFramedInputStream to force allocations up to 2 GB, causing OutOfMemoryError and denial of service.

Affected products

• xerial snappy-java: before 1.1.10.9 — fixed in 1.1.10.9

How to fix

Upgrade to a fixed version: xerial snappy-java 1.1.10.9. Check the vendor advisory for mitigations.

References

• https://github.com/xerial/snappy-java
• https://github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.java#L517
• https://github.com/xerial/snappy-java/commit/943c6043a292568575e8347af4507d015e802c75
• https://github.com/xerial/snappy-java/releases/tag/v1.1.10.9
• https://github.com/xerial/snappy-java/security/advisories/GHSA-q233-g92q-qxp6
• https://www.vulncheck.com/advisories/xerial-snappy-java-before-1.1.10.9-unbounded-memory-allocation-denial-of-service

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