Deserialization of Untrusted Data in Guava: Google Core Libraries For Java - CVE-2026-102554
Published: October 30, 2026
Vulnerability identifier: #VU158512
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-102554
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to Guava eagerly allocates an array based on a caller-specified size parameter without throttling, permitting memory exhaustion from crafted serialization streams, when deserializing CompactHashMap, CompactHashSet, or MapMakerInternalMap instances. A remote attacker can pass specially crafted data to the application and perform a denial of service attack.
Affected software
Guava: Google Core Libraries For Java
IBM SPSS Analytic Server
IBM SPSS Analytic Server
How to mitigate CVE-2026-102554
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..
Guava: Google Core Libraries For Java - update to 33.7.2
IBM SPSS Analytic Server - addressed in versions 3.4 IF011, 3.5 IF011, 3.6 IF011, 4.0.0.0 IF011
IBM SPSS Analytic Server - addressed in versions 3.4 IF011, 3.5 IF011, 3.6 IF011, 4.0.0.0 IF011