Denial of service in Google Guava deserialization of collections
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Code execution, Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 fixed, 24 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-502 and CWE-770.
Summary
Google Guava versions from 4.0 before 33.7.2 are affected. When deserializing CompactHashMap, CompactHashSet, or MapMakerInternalMap, Guava eagerly allocates an array sized by a caller-specified value without limits (CWE-770). A remote attacker without privileges can send a crafted serialized stream that exhausts memory and causes an OutOfMemoryError denial of service. CISA SSVC data records proof-of-concept exploitation.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Guava | 4.0 to before 33.7.2 | 33.7.2 | Patch available | CNA | |
| — | com.google.guava:guava (Maven) | 4.0 to before 33.7.2 | 33.7.2 | Patch available | GHSA-xxph-c9ww-hj94 |
- Guava VendorGoogle Affected 4.0 to before 33.7.2 Fixed in 33.7.2 Patch available CNA
- com.google.guava:guava (Maven) Vendor— Affected 4.0 to before 33.7.2 Fixed in 33.7.2 Patch available GHSA-xxph-c9ww-hj94
Remediation
Upgrade Google Guava to version 33.7.2, which also fixes the Maven package com.google.guava:guava. Red Hat fixes this in Red Hat Build of Apache Camel 3.33.4.SP3 through RHSA-2026:95622. The sources list no fixed version for Exploit Intelligence, Migration Toolkit for Applications 8, OpenShift Developer Tools and Services, OpenShift Serverless, Red Hat AMQ Broker 7 and other products, and no fix planned for Red Hat JBoss Enterprise Application Platform 7.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Guava (Google) Fixed in 33.7.2
- Fix · GHSA-xxph-c9ww-hj94 com.google.guava:guava (Maven) Fixed in 33.7.2 Advisory →
Red Hat 1 advisory
- RHSA-2026:95622 Released 2026-11-05 · Red Hat rating ImportantRed Hat Build of Apache Camel 4.18 for Quarkus 3.33 update is now available (RHBQ 3.33.4.SP3)
- Red Hat Build of Apache Camel 3.33.4.SP3 com.google.guava.guava-33.7.2.jre-redhat-00002.jar, io.vertx.vertx-grpc-server-4.5.35.redhat-00001.jar, io.vertx.vertx-web-4.5.35.redhat-00001.jar +4
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Exploit Intelligence | Affected | No fix yet |
| Migration Toolkit for Applications 8 | Affected | No fix yet |
| OpenShift Developer Tools and Services | Affected | No fix yet |
| OpenShift Serverless | Affected | No fix yet |
| Red Hat AMQ Broker 7 | Affected | No fix yet |
| Red Hat Build of Keycloak | Affected | No fix yet |
| Red Hat Ceph Storage 7 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 8 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet |
| Red Hat Single Sign-On 7 | Affected | No fix yet |
| Red Hat build of Apache Camel 4 for Quarkus 3 | Affected | No fix yet |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet |
| Red Hat build of Apicurio Registry 3 | Affected | No fix yet |
| Red Hat build of OpenJDK Konflux Container Build | Affected | No fix yet |
| Red Hat build of Quarkus | Affected | No fix yet |
| streams for Apache Kafka 3 | Affected | No fix yet |
| Red Hat Build of Apache Camel 3.33.4.SP3 | Fixed | RHSA-2026:95622 |
Not affected: 17 products
- Exploit Intelligence
- Red Hat AI Inference Server
- Red Hat AMQ Clients
- Red Hat Ansible Automation Platform 2
- Red Hat Build of Apache Camel 3.33.4.SP3
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux AI (RHEL AI) 3
- Red Hat Fuse 7
- Red Hat Hardened Images
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Red Hat JBoss Web Server 7
- Red Hat Offline Knowledge Portal
- Red Hat OpenShift AI (RHOAI)
- Red Hat OpenStack Platform 16.2
- Red Hat Satellite 6
Timeline
- 2026-10-09 Threatist record created from CVE-2026-102554
- 2026-10-16 Affected versions changed · Red Hat
- 2026-10-16 CVSS score added · Red Hat
- 2026-10-19 Affected versions changed · Red Hat
- 2026-10-20 Affected versions changed · Red Hat
- 2026-10-22 Affected versions changed · Red Hat
- 2026-10-23 Affected versions changed · Red Hat
- 2026-10-27 Alias added: GHSA-xxph-c9ww-hj94
- 2026-11-03 Affected versions changed · Red Hat
- 2026-11-04 Affected versions changed · Red Hat
- 2026-11-06 Fix available: Red Hat Build of Apache Camel 3.33.4.SP3 · Red Hat
- 2026-11-06 Fix available: RHSA-2026:95622 · Red Hat
References
More Google vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2026-102554 · CVE Program
- CVE-2026-102554 · NVD
- FIRST EPSS
- GHSA-xxph-c9ww-hj94 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-102554 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences