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CVE-2023-43642 snappy-java

Affected softwaresnappy-java
Severity7.5 High CVSS 3.1 2 scores
Fixed in1.1.10.4
WeaknessCWE-770
Published25 Sep 2023
Updated17 Jun 2026

Description

snappy-java is a Java port of the snappy, a fast C++ compresser/decompresser developed by Google. The SnappyInputStream was found to be vulnerable to Denial of Service (DoS) attacks when decompressing data with a too large chunk size. Due to missing upper bound check on chunk length, an unrecoverable fatal error can occur. All versions of snappy-java including the latest released version 1.1.10.3 are vulnerable to this issue. A fix has been introduced in commit 9f8c3cf74 which will be included in the 1.1.10.4 release. Users are advised to upgrade. Users unable to upgrade should only accept compressed data from trusted sources.

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: poc CISA recorded that an exploit has been demonstrated. Automatable: yes, technical impact: partial.
  • Indexed PoC none indexed
  • EPSS 1.2% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: xerial/snappy-java 9f8c3cf.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5 : a commit: the change itself

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H security-advisories@github.com Secondary published
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update July 2026 ↗ CPU 2026-Q3 Oracle Communications / Core (assertj) (6.1.1-7.0.0)
Oracle Critical Patch Update January 2024 ↗ CPU 2024-Q1 Oracle Analytics / Visual Analyzer (Snappy) (7.0.0.0.0)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Analytics Visual Analyzer (Snappy) 7.0.0.0.0 7.0.0.0.0
Oracle Communications Core (assertj) 6.1.1-7.0.0

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.xerial.snappy:snappy-java 0 1.1.10.4 unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
osv org.xerial.snappy snappy-java generic < 1.1.10.4
nvd xerial snappy-java generic < 1.1.10.4

References

URLTags
https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5 commit
https://github.com/xerial/snappy-java/security/advisories/GHSA-55g7-9cwv-5qfv WEB
https://github.com/xerial/snappy-java PACKAGE
https://github.com/xerial/snappy-java/releases/tag/v1.1.10.4 WEB

Timeline

Published2023-09-25By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.