Red Hat Security Advisory: Red Hat build of Quarkus 3.20.6.SP1 security update
Affects Red HatSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 9.3 Critical · fixed in Red Hat package updates : patch Red Hat bcprov as a priority.
Data as of 30 Oct 2026, 02:14 UTC
- Patch
- Available – fixed in 1.84, 1.81.1, 1.80.2
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/RE:M/U:RedExploitation evidence
Disclosed: evidence found.
CVE published 15 Apr 2026
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 29 Oct 2026.
What to do
Upgrade BC-JAVA and bcprov and org.bouncycastle/bcprov-jdk15on to 1.84, 1.81.1 or 1.80.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Legion of the Bouncy Castle Inc.BC-JAVA | Affected
| Fixed in
|
| Legion of the Bouncy Castle Inc.BC-JAVA | Affected
| Fixed in
|
| Legion of the Bouncy Castle Inc.BC-JAVA | Affected
| Fixed in
|
GitHubbcprovpkg:github/bcprovOther threats | Affected
| Fixed in
|
Mavenorg.bouncycastle/bcprov-jdk15onpkg:maven/org.bouncycastle/bcprov-jdk15onOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
This release of Red Hat build of Quarkus 3.20.6.SP1 includes the following CVE fixes: * quarkus-vertx-http: io.quarkus:quarkus-vertx-http: Authorization bypass via semicolons in HTTP requests [quarkus-3.20] (CVE-2026-39852) * bcprov-jdk18on: GOSTCTR implementation unable to process more than 255 blocks correctly [quarkus-3.20] (CVE-2025-14813) * bcpkix-jdk18on: PKIX draft CompositeVerifier accepts empty signature sequence as valid [quarkus-3.20] (CVE-2026-5588) * bcprov-jdk18on: LDAP injection vulnerability in LDAPStoreHelper.java [quarkus-3.20] (CVE-2026-0636) For more information, see the release notes page listed in the References section.
References
- access.redhat.com/errata/RHSA-2026:11720 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (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=3.20.6.SP1 (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.20 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_11720.json (opens in a new tab)