High 8.2Published Oct 9, 2026

CVE-2026-102554Denial of Service via Eager Array Allocation During Deserialization in Guava

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects Google Guava. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.35%, higher than 27% of scored CVEs.

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Exploited in the last 30 days

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.

CVSS: 8.2 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-770, CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.35% (percentile 27)
Assigned by: Google
NVD analysis: Awaiting Analysis
Record last updated: Oct 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Google Guava google:guava (from the name)	from 4.0 before 33.7.2	CNA record

References

https://github.com/google/guava/security/advisories/GHSA-xxph-c9ww-hj94
https://github.com/google/guava/commit/b931fe9d6d5cf00bc55714ad3308d086f71850fe
https://github.com/google/guava/releases/tag/v33.7.2

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.