Out-of-bounds write in snappy-java - CVE-2026-90559
Published: October 5, 2026
Vulnerability identifier: #VU153266
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2026-90559
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 an out-of-bounds write in Snappy.uncompress(ByteBuffer, ByteBuffer) when processing a crafted compressed input with a declared decompressed size larger than the destination buffer's remaining capacity. A remote attacker can supply a crafted compressed input to cause a denial of service.
The native decompressor can write past the end of a direct buffer's off-heap allocation.
Affected software
snappy-java
Tivoli Network Manager IP Edition
Tivoli Network Manager IP Edition
How to mitigate CVE-2026-90559
Install security update from vendor's website.
snappy-java - update to 1.1.10.9