Summary
Thomas Beckers discovered that the JAXP component of OpenJDK 11 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of OpenJDK 11 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of OpenJDK 11 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that the JGSS component of OpenJDK 11 did not correctly
authenticate certain APIs. A remote attacker could possibly use this issue
to obtain sensitive information. (CVE-2026-22013)
It was discovered that the 2D component of OpenJDK 11 did not correctly
handle certain integer arithmetic. If a user or automated system were
tricked into opening a specially crafted file, an attacker could possibly
use this issue to leak sensitive information. (CVE-2026-23865)
It was discovered that the Libraries component of OpenJDK 11 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-22018)
Ken Pyle discovered that the Security component of OpenJDK 11 did not
correctly authenticate certain APIs. A local attacker could possibly use
this issue to leak sensitive information. (CVE-2026-22007, CVE-2026-34268)
In addition to security fixes, the updated packages contain bug fixes, new
features, and possibly incompatible changes.
Please see the following for more information:
https://openjdk.org/groups/vulnerability/advisories/2026-04-21
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | openjdk-lts | 11.0.31+11-1ubuntu1~22.04.2 |
| Ubuntu · 24.04 LTS 24.04:LTS | openjdk-lts | 11.0.31+11-1ubuntu1~24.04.2 |
| Ubuntu · 25.10 | openjdk-lts | 11.0.31+11-1ubuntu1~25.10.2 |
| Ubuntu · 26.04 LTS 26.04:LTS | openjdk-lts | 11.0.31+11-1ubuntu1~26.04.2 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | openjdk-lts | 11.0.31+11-1ubuntu1~18.04.2 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | openjdk-lts | 11.0.31+11-1ubuntu1~20.04.2 |
References
-
report
https://ubuntu.com/security/CVE-2026-22007
-
report
https://ubuntu.com/security/CVE-2026-22013
-
report
https://ubuntu.com/security/CVE-2026-22016
-
report
https://ubuntu.com/security/CVE-2026-22018
-
report
https://ubuntu.com/security/CVE-2026-22021
-
report
https://ubuntu.com/security/CVE-2026-23865
-
report
https://ubuntu.com/security/CVE-2026-34268
-
report
https://ubuntu.com/security/CVE-2026-34282