Red Hat Security Advisory: Red Hat build of Quarkus 3.20.2.SP1 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
This release of Red Hat build of Quarkus 3.20.2.SP1 includes the following CVE fix: * netty-codec-http2: Netty MadeYouReset HTTP/2 DDoS Vulnerability [quarkus-3.20] (CVE-2025-55163) For more information, see the release notes page listed in the References section.
References
- access.redhat.com/errata/RHSA-2025:14008 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- access.redhat.com/articles/4966181 (opens in a new tab)
- access.redhat.com/products/quarkus/ (opens in a new tab)
- access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=redhat.quarkus&downloadType=distributions&version=3.20.2.SP1 (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.20 (opens in a new tab)
- issues.redhat.com/browse/QUARKUS-6475 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_14008.json (opens in a new tab)