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.
History

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Important


Fri, 09 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 09 Oct 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google guava
Vendors & Products Google
Google guava

Fri, 09 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title Denial of Service via Eager Array Allocation During Deserialization in Guava
Weaknesses CWE-502
CWE-770
References
Metrics cvssV4_0

{'score': 8.2, 'vector': '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-icon MITRE

Status: PUBLISHED

Assigner: Google

Published: 2026-10-09T15:07:16.130Z

Updated: 2026-10-09T18:09:50.100Z

Reserved: 2026-09-29T13:06:27.848Z

Link: CVE-2026-102554

cve-icon Vulnrichment

Updated: 2026-10-09T18:09:44.258Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-09T16:17:20.410

Modified: 2026-10-09T18:17:01.380

Link: CVE-2026-102554

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-09T15:07:16Z

Links: CVE-2026-102554 - Bugzilla