CVE-2026-102554 Google Guava - Denial of Service

Google Guava 4.0 through 33.7.1 contains a denial of service caused by unthrottled resource allocation during deserialization of CompactHashMap, CompactHashSet, or MapMakerInternalMap, letting attackers cause memory exhaustion via crafted streams, exploit requires crafted serialization input.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
9 October 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

Update to the latest version beyond 33.7.1.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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