CVE-2026-102554

High

Description

Allocation of resources without limits or throttling (CWE-770) during Java object deserialization in Google Guava versions 4.0 through 33.7.1 allows an attacker to cause a Denial of Service via OutOfMemoryError. When deserializing CompactHashMap, CompactHashSet, or MapMakerInternalMap instances, Guava eagerly allocates an array based on a caller-specified size parameter without throttling, permitting memory exhaustion from crafted serialization streams.

SeverityHigh

CVSS8.2

Exploit probability—

Product

Com.google.guava:guava

PublishedOct 9, 2026

First seenOct 9, 2026

Weakness typeCWE-770Allocation of resources without limits CWE-502Deserialization of untrusted data

How to fix

Update

com.google.guava:guava33.7.2 or later

Affected products

Product	Affected versions	Fixed in
com.google.guava:guavaMaven	4.0 ≤ v < 33.7.2	33.7.2
microsoft azl3_guava_33.0.0-1	No range specified	—
microsoft azl3_javapackages-bootstrap_1.14.0-4	No range specified	—
microsoft azl3_guava_33.0.0-2	No range specified	—

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