Out-of-bounds write in snappy-java - CVE-2026-116590
Published: October 5, 2026 / Updated: November 2, 2026
Vulnerability identifier: #VU153267
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-116590
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper validation of array indices in Snappy.arrayCopy and the SnappyOutputStream.rawWrite and SnappyInputStream.rawRead methods when handling caller-supplied offsets and lengths. A remote attacker can supply negative or oversized offsets or lengths to cause a denial of service.
Affected software
snappy-java
How to mitigate CVE-2026-116590
Install security update from vendor's website.
snappy-java - update to 1.1.10.9