CVE-2026-90559

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/xerial/snappy-java
https://github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.java#L561
https://github.com/xerial/snappy-java/issues/728
https://www.vulncheck.com/advisories/snappy-java-through-1.1.10.8-out-of-bounds-write-via-uncompress

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-12 18:16

Updated : 2026-09-14 19:18

NVD link : CVE-2026-90559

Mitre link : CVE-2026-90559

CVE.ORG link : CVE-2026-90559

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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