Google Guava up to 33.7.1 CompactHashMap size allocation of resources

Summaryinfo

A vulnerability described as problematic has been identified in Google Guava up to 33.7.1. The affected element is an unknown function of the component CompactHashMap. The manipulation of the argument size results in allocation of resources. This vulnerability was named CVE-2026-102554. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Google Guava up to 33.7.1. Affected is an unknown code block of the component CompactHashMap. The manipulation of the argument size with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-102554 since 09/29/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/09/2026). This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 33.7.2 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Google

Name

• Guava

Version

• 33.7.0
• 33.7.1

License

• free

Website

• Vendor: https://www.google.com/
• Product: https://github.com/google/guava/

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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