{"id":"CVE-2026-102554","state":"PUBLISHED","title":"Denial of Service via Eager Array Allocation During Deserialization in Guava","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.","publishedAt":"2026-10-09T15:07:16.130Z","updatedAt":"2026-10-09T18:09:50.100Z","severity":{"score":8.2,"label":"High","version":"4.0","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","source":"Google"},"assigner":"Google","products":["Google Guava"],"affected":[{"vendor":"Google","product":"Guava","defaultStatus":"unaffected","versions":[{"version":"4.0","status":"affected","lessThan":"33.7.2","versionType":"semver"}],"repo":"https://github.com/google/guava"}],"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"],"weaknesses":["CWE-770","CWE-502"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/102xxx/CVE-2026-102554.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102554","state":"PUBLISHED","datePublished":"2026-10-09T15:07:16.130Z","dateUpdated":"2026-10-09T18:09:50.100Z","assignerShortName":"Google","assignerOrgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateReserved":"2026-09-29T13:06:27.848Z"},"containers":{"cna":{"title":"Denial of Service via Eager Array Allocation During Deserialization in Guava","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Google","product":"Guava","defaultStatus":"unaffected","versions":[{"version":"4.0","status":"affected","lessThan":"33.7.2","versionType":"semver"}],"repo":"https://github.com/google/guava"}],"references":[{"url":"https://github.com/google/guava/security/advisories/GHSA-xxph-c9ww-hj94"},{"url":"https://github.com/google/guava/commit/b931fe9d6d5cf00bc55714ad3308d086f71850fe"},{"url":"https://github.com/google/guava/releases/tag/v33.7.2"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.2,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770 Allocation of Resources Without Limits or Throttling","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-502","lang":"en","description":"CWE-502 Deserialization of Untrusted Data","type":"CWE"}]}],"providerMetadata":{"shortName":"Google","orgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateUpdated":"2026-10-09T15:07:16.130Z"},"impacts":[{"capecId":"CAPEC-130","descriptions":[{"lang":"en","value":"CAPEC-130 Excessive Allocation"}]},{"capecId":"CAPEC-586","descriptions":[{"lang":"en","value":"CAPEC-586 Object Injection"}]}],"credits":[{"lang":"en","value":"Kaya Emre Arikan (https://github.com/kemrec)","type":"finder"}],"source":{"discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/google/guava/security/advisories/GHSA-xxph-c9ww-hj94","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-09T18:09:30.467336Z","id":"CVE-2026-102554","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-09T18:09:50.100Z"}}]}}}