Red Hat Security Advisory: Red Hat Data Grid 8.5.5 security update
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 8.2 High.
Data as of 5 Nov 2026, 17:34 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 4.0 | 8.2 |
|---|
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
Description
Red Hat Data Grid is an in-memory, distributed, NoSQL datastore solution. It increases application response times and allows for dramatically improving performance while providing availability, reliability, and elastic scale. Data Grid 8.5.5 replaces Data Grid 8.5.4 and includes bug fixes and enhancements. Find out more about Data Grid 8.5.5 in the Release Notes[3]. Security Fix(es): * CVE-2025-55163 netty-codec-http2: Netty MadeYouReset HTTP/2 DDoS Vulnerability [jdg-8] (CVE-2025-55163) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.