SEPTEMBER 13, 2026
Live Feed
Back to database
Case File

CVE-2026-90559

HIGH · CVSS 7.5 Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-12 · Last synced 2026-09-13

CyberRota Analysis

AI-Generated

The vulnerability affects the snappy-java library versions up to 1.1.10.8, where an out-of-bounds write can occur in the Snappy.uncompress method due to insufficient validation of the destination buffer's capacity. This flaw allows attackers to exploit valid compressed data, leading to potential buffer overflows, JVM crashes, and possible arbitrary code execution. Organizations using this library, especially those handling untrusted data, should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-90559
Severity
HIGH
CVSS
7.5
EPSS
N/A
Java

Original NVD Description

snappy-java through 1.1.10.8 contains an out-of-bounds write vulnerability in Snappy.uncompress(ByteBuffer, ByteBuffer) because destination buffer capacity is never validated against decompressed size. Attackers can supply valid compressed data that decompresses larger than the destination buffer, causing writes past buffer boundaries and JVM termination.