With Cloud Native Compiler compilation streaming enabled, maximum memory usage could increase by up to ~900 MB in some cases.
26.10.0.0
26.10.0.0
Release date: November 3, 2026
This CPU release is based on the Azul Zing Build of OpenJDK (Zing) 26.09.0.0 and corresponds to the following OpenJDK versions:
| Major Version |
Corresponding OpenJDK Version |
Based on Zing Version |
Based on OpenJDK Version |
|---|---|---|---|
8 |
1.8.0_511-b5 |
26.09.0.0 |
1.8.0_504-b2 |
11 |
11.0.32.1.103+1-LTS |
26.09.0.0 |
11.0.32.1+1-LTS |
17 |
17.0.20.1.103+1-LTS |
26.09.0.0 |
17.0.20.1+1-LTS |
21 |
21.0.12.1.103+1-LTS |
26.09.0.0 |
21.0.12.1+1-LTS |
25 |
25.0.4.1.103+1-LTS |
26.09.0.0 |
25.0.4.1+1-LTS |
What’s New
-
When
-Xmxis not set and ZST is not installed, the minimum default maximum heap size is now 512 MB instead of 1 GB. This prevents small containers, for example with a 1536 MB memory limit, from being terminated by the out-of-memory (OOM) killer because the default heap plus native memory exceeded the container limit.With ZST, the default remains 1 GB. Heap sizes set explicitly with
-Xmxor-XX:MaxRAMPercentageare not affected. -
This release includes both fixes for the eMudhra Intermediate CA Compromise:
The
lib/security/blocked.certsfile includes the compromised eMudhra (emSign) intermediate CA certificates, so they are no longer trusted for TLS or code signing. This fix was first delivered in the 26.08.101.0 and 26.02.501.0 updates.Certain CA certificates are removed from the
cacertstruststore. This fix was first delivered in the 26.08.102.0 and 26.02.502.0 updates.All customers running Azul Prime Stream Builds 26.09.0.0 or earlier are strongly encouraged to upgrade to this release.
If you cannot upgrade immediately, see Workaround for the eMudhra CA Certificate Compromise for instructions on replacing the block list file in your existing installations. The workaround covers the block list only, not the
cacertschange. -
October 2026 CPU release security fixes.
CVE fixes
| CVE # | Component | Protocol | Remote Exploit w/o Auth. | Base Score | Attack Vector | Attack Complex | Privileges Req’d | User Interact | Scope | Confiden-tiality | Integrity | Availability | Versions Affected | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2D |
Multiple |
Yes |
7.0 |
Network |
High |
None |
None |
Unchanged |
Low |
Low |
High |
25, 21, 17, 11, 8 |
Note 2 |
|
Networking |
SOCKS5 |
Yes |
6.8 |
Network |
High |
None |
None |
Changed |
None |
High |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
Libraries |
Multiple |
Yes |
6.5 |
Network |
Low |
None |
None |
Unchanged |
Low |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
Networking |
Multiple |
Yes |
6.5 |
Network |
Low |
None |
None |
Unchanged |
None |
Low |
Low |
25, 21, 17, 11, 8 |
Note 2 |
|
Security |
Multiple |
Yes |
6.5 |
Network |
Low |
None |
None |
Unchanged |
Low |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
2D |
Multiple |
Yes |
6.5 |
Network |
High |
None |
None |
Unchanged |
None |
High |
Low |
17, 11, 8 |
Note 2 |
|
Utility |
Multiple |
Yes |
6.5 |
Network |
Low |
None |
None |
Unchanged |
None |
Low |
Low |
11, 8 |
Note 2 |
|
Utility |
Multiple |
Yes |
6.5 |
Network |
Low |
None |
None |
Unchanged |
None |
Low |
Low |
11, 8 |
Note 2 |
|
JGSS |
Multiple |
Yes |
6.5 |
Network |
High |
None |
None |
Unchanged |
None |
Low |
High |
11, 8 |
Note 2 |
|
Security |
Multiple |
Yes |
5.9 |
Network |
High |
None |
None |
Unchanged |
None |
High |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
JDBC |
Multiple |
Yes |
5.9 |
Network |
High |
None |
None |
Unchanged |
High |
None |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
JAXP |
Multiple |
Yes |
5.9 |
Network |
High |
None |
None |
Unchanged |
High |
None |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
Networking |
Multiple |
Yes |
5.9 |
Network |
High |
None |
None |
Unchanged |
High |
None |
None |
25, 21, 17, 11 |
Note 2 |
|
JGSS |
Multiple |
Yes |
5.9 |
Network |
High |
None |
None |
Unchanged |
None |
High |
None |
25, 21, 17, 11, 8 |
Note 3 |
|
RMI |
Multiple |
Yes |
5.4 |
Network |
High |
None |
None |
Changed |
Low |
Low |
None |
8 |
Note 3 |
|
JAAS |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
Low |
None |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
JAXP |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
None |
Low |
25, 21, 17, 11, 8 |
Note 2 |
|
JSSE |
TLS |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
None |
Low |
25, 21, 17, 11, 8 |
Note 2 |
|
Libraries |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
None |
Low |
25, 21, 17, 11, 8 |
Note 2 |
|
CORBA |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
None |
Low |
8 |
Note 3 |
|
ImageIO |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
None |
Low |
25, 21, 17, 11, 8 |
Note 2 |
|
Networking |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
Low |
None |
25, 21, 17, 11, 8 |
Note 3 |
|
Networking |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
Low |
None |
25, 21, 17, 11, 8 |
Note 3 |
|
Lightweight HTTP Server |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
Low |
None |
25, 21, 17, 11, 8 |
Note 3 |
|
JGSS |
Multiple |
Yes |
5.3 |
Network |
High |
None |
Required |
Unchanged |
High |
None |
None |
25, 21, 17, 11, 8 |
Note 1 |
|
JGSS |
Multiple |
Yes |
5.3 |
Network |
High |
None |
Required |
Unchanged |
High |
None |
None |
25, 21, 17, 11, 8 |
Note 1 |
|
Security |
Multiple |
Yes |
4.8 |
Network |
High |
None |
None |
Unchanged |
Low |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
Serviceability |
Multiple |
Yes |
4.8 |
Network |
High |
None |
None |
Unchanged |
Low |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
Libraries |
None |
No |
4.7 |
Local |
High |
None |
Required |
Unchanged |
None |
High |
None |
25, 21, 17, 11 |
Note 2 |
|
JDK tools |
None |
No |
4.7 |
Local |
High |
None |
Required |
Unchanged |
None |
High |
None |
25, 21, 17, 11 |
Note 1 |
|
Utility |
None |
No |
4.0 |
Local |
High |
None |
None |
Unchanged |
Low |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
JSSE |
TLS |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
None |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
Networking |
Multiple |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
None |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
JAXP |
Multiple |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
None |
Low |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
Security |
Multiple |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
None |
Low |
None |
25, 21 |
Note 2 |
|
ImageIO |
Multiple |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
Low |
None |
None |
25, 21, 17, 11, 8 |
Note 2 |
|
2D |
Multiple |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
None |
Low |
None |
8 |
Note 2 |
|
JSSE |
TLS |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
None |
Low |
None |
25, 21, 17, 11, 8 |
Note 3 |
|
Serviceability |
None |
No |
3.6 |
Local |
High |
None |
Required |
Unchanged |
None |
Low |
Low |
25, 21, 17, 11, 8 |
Note 2 |
|
Sound |
Multiple |
Yes |
3.1 |
Network |
High |
None |
Required |
Unchanged |
None |
None |
Low |
25, 21, 17, 11, 8 |
Note 1 |
|
CVE-2026-43660 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
JavaFX (WebKitGTK) |
Multiple |
Yes |
7.5 |
Network |
High |
None |
Required |
Unchanged |
High |
High |
High |
None |
Note 1 |
CVE-2026-91484 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Java plugin |
None |
No |
7.5 |
Local |
High |
Low |
None |
Changed |
High |
High |
None |
None |
Note 1 |
CVE-2026-101737 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Compiler |
Multiple |
Yes |
5.9 |
Network |
High |
None |
None |
Unchanged |
None |
None |
High |
None |
Note 3 |
CVE-2026-6732 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
JavaFX (WebKitGTK) |
Multiple |
Yes |
5.9 |
Network |
High |
None |
None |
Unchanged |
None |
None |
High |
None |
Note 1 |
CVE-2026-91385 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
JavaFX |
Multiple |
Yes |
5.4 |
Network |
Low |
None |
Required |
Unchanged |
Low |
Low |
None |
None |
Note 1 |
CVE-2026-87291 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Networking |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
Low |
None |
None |
None |
Note 3 |
CVE-2026-91332 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Networking |
Multiple |
Yes |
5.3 |
Network |
Low |
None |
None |
Unchanged |
None |
Low |
None |
None |
Note 2 |
CVE-2026-83378 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Compiler |
Multiple |
Yes |
4.8 |
Network |
High |
None |
None |
Unchanged |
Low |
Low |
None |
None |
Note 3 |
CVE-2026-91487 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Compiler |
Multiple |
Yes |
4.8 |
Network |
High |
None |
None |
Unchanged |
Low |
Low |
None |
None |
Note 3 |
CVE-2026-46470 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
JavaFX (gstreamer) |
Multiple |
Yes |
4.2 |
Network |
High |
None |
Required |
Unchanged |
Low |
None |
Low |
None |
Note 1 |
CVE-2026-87255 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Compiler |
Multiple |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
Low |
None |
None |
None |
Note 3 |
CVE-2026-91409 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
Networking |
Multiple |
Yes |
3.7 |
Network |
High |
None |
None |
Unchanged |
None |
None |
Low |
None |
Note 2 |
CVE-2026-91402 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
JavaFX |
Multiple |
Yes |
3.1 |
Network |
High |
None |
Required |
Unchanged |
Low |
None |
None |
None |
Note 1 |
CVE-2026-91477 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
JavaFX |
Multiple |
Yes |
3.1 |
Network |
High |
None |
Required |
Unchanged |
Low |
None |
None |
None |
Note 1 |
CVE-2026-91335 This CVE is not applicable to Azul Zing Builds of OpenJDK. It is listed here for comparison with other Java implementations which may contain this CVE. |
AWT |
Multiple |
No |
2.6 |
Network |
High |
Low |
Required |
Unchanged |
Low |
None |
None |
None |
Note 1 |
Notes:
| ID | Notes |
|---|---|
1 |
This vulnerability applies to Java deployments that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically on servers, that load and run only trusted code (e.g., code installed by an administrator). |
2 |
This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. |
3 |
This vulnerability can only be exploited by supplying data to APIs in the specified Component, such as through a web service. |
For more information about CVE and non-CVE security fixes in this release, refer to Common Vulnerabilities and Exposures Fixes for October 2026