CVE-2026-93451: Out-of-bounds Write in xerial snappy-java
CVE-2026-93451 is a buffer overflow vulnerability in the xerial snappy-java library up to version 1.1.10.8. It occurs in the typed Snappy.uncompress*Array methods, where output arrays are allocated incorrectly, leading to out-of-bounds writes in native code. This can corrupt heap memory when attackers control the compressed input.
AI Analysis
Technical Summary
The vulnerability exists because the uncompressed length is divided by the element size to allocate output arrays, but the native code receives the undivided length. This mismatch allows attackers who control compressed input data to cause misaligned length values, resulting in writes beyond the allocated array bounds and heap memory corruption. The issue affects snappy-java versions up to and including 1.1.10.8.
Potential Impact
An attacker who can supply crafted compressed input to the vulnerable snappy-java library can trigger heap memory corruption due to out-of-bounds writes. This may lead to application instability or potential exploitation depending on the context in which the library is used. The CVSS 4.0 base score is 6.9 (medium severity), indicating a moderate risk without requiring privileges or user interaction.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted compressed input with affected versions of snappy-java.
CVE-2026-93451: Out-of-bounds Write in xerial snappy-java
Description
CVE-2026-93451 is a buffer overflow vulnerability in the xerial snappy-java library up to version 1.1.10.8. It occurs in the typed Snappy.uncompress*Array methods, where output arrays are allocated incorrectly, leading to out-of-bounds writes in native code. This can corrupt heap memory when attackers control the compressed input.
CVSS v4.0
Score 6.9medium
Affected software
xerial
snappy-java
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability exists because the uncompressed length is divided by the element size to allocate output arrays, but the native code receives the undivided length. This mismatch allows attackers who control compressed input data to cause misaligned length values, resulting in writes beyond the allocated array bounds and heap memory corruption. The issue affects snappy-java versions up to and including 1.1.10.8.
Potential Impact
An attacker who can supply crafted compressed input to the vulnerable snappy-java library can trigger heap memory corruption due to out-of-bounds writes. This may lead to application instability or potential exploitation depending on the context in which the library is used. The CVSS 4.0 base score is 6.9 (medium severity), indicating a moderate risk without requiring privileges or user interaction.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted compressed input with affected versions of snappy-java.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-17T22:45:30.561Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aac788555bf5e2cf5129614
Added to database: 09/17/2026, 23:32:21 UTC
Last enriched: 09/17/2026, 23:46:47 UTC
Last updated: 09/18/2026, 00:23:29 UTC
Views: 6
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