Ubuntu alert USN-8341-1 (openjdk-26)

From:
             
 
noreply+usn-bot@canonical.com
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-8341-1] OpenJDK 26 vulnerabilities
Date:
             
 
Thu, 28 May 2026 21:17:53 +0000
Message-ID:
             
 
<E1wSi6z-0004OA-Kd@lists.ubuntu.com>
==========================================================================
Ubuntu Security Notice USN-8341-1
May 28, 2026

openjdk-26 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 25.10

Summary:

Several security issues were fixed in OpenJDK 26.

Software Description:
- openjdk-26: Open Source Java implementation

Details:

Thomas Beckers discovered that the JAXP component of OpenJDK 26 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 26 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 26 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 26 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 26 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 obtain sensitive information. (CVE-2026-23865)

It was discovered that the Libraries component of OpenJDK 26 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to modify data. (CVE-2026-22008)

It was discovered that the Libraries component of OpenJDK 26 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 26 did not
correctly authenticate certain APIs. A local attacker could possibly
use this issue to obtain 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-...

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
  openjdk-26-jdk                  26.0.1+8-2~26.04.2
  openjdk-26-jdk-headless         26.0.1+8-2~26.04.2
  openjdk-26-jre                  26.0.1+8-2~26.04.2
  openjdk-26-jre-headless         26.0.1+8-2~26.04.2
  openjdk-26-jre-zero             26.0.1+8-2~26.04.2

Ubuntu 25.10
  openjdk-26-jdk                  26.0.1+8-2~25.10.2
  openjdk-26-jdk-headless         26.0.1+8-2~25.10.2
  openjdk-26-jre                  26.0.1+8-2~25.10.2
  openjdk-26-jre-headless         26.0.1+8-2~25.10.2
  openjdk-26-jre-zero             26.0.1+8-2~25.10.2

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any running
Java applications to make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-8341-1
  CVE-2026-22007, CVE-2026-22008, CVE-2026-22013, CVE-2026-22016,
  CVE-2026-22018, CVE-2026-22021, CVE-2026-23865, CVE-2026-34268,
  CVE-2026-34282

Package Information:
  https://launchpad.net/ubuntu/+source/openjdk-26/26.0.1+8-...
  https://launchpad.net/ubuntu/+source/openjdk-26/26.0.1+8-...


Attachment: signature.asc (type=application/pgp-signature)
-----BEGIN PGP SIGNATURE-----

iQIzBAABCgAdFiEE+8neBLO2Hp/ppPlOcpJm3tlzhgEFAmoYpsAACgkQcpJm3tlz
hgH4Gw//am7nCcrhBZsb0Duif9FsbGeK5rR49M09tXrZ0k9qqfr9CvkUXz3qrAU0
y8f5H2w/BW0wJMWmxH6hpOaKNYO/2GSMl64NNmgjTdpZq1GLaImtJ3ubToJ0C+Xj
aXo6tiaJn0drvmzXHMSaTOTHzAMtv800Fr41bvxYIDRC7cl1KqZhqx7uyyDlTOHe
SFA6TE4VHBT3oNy6xOPS/80fXq6I76VBi30c4bkGqwfStCUqb7BTMeg0DlVBSh2L
uR/e05t6S008VpU0xGm/5uZ/lAlxSTfN24z9LdQk2O4lDSGALggUo5FQEMdrle5t
2cthoHqPWZkaoqQXLaP7WfqhaUw3udk/UDITxhB2llnGSZDZNeR5gti4/2km2wgy
s0xKHWA8eDaRE7fKJCaczTBY7d38un2YOMzn5/E4UUl3AScdWfqLpn9rY5O++4aZ
Z9F5s/Ya0g5Q2LEMQK3dfPmw4uRqCLNFerI8QGCFcDvicyKgBXHJr/LvctxBk2XH
8CDgCp/TZfCcr7J1ryx7DzxVkI5LmqI4CZJc6B5yNkWnX2vaNQ06h162U3qhlycr
QXB0/eNt6tYLg1ANaQiPWE6EDiTi3EibPPflDoIdln89CstNE+LseuoTqBjaWY4F
RdHcZXbzGurSJjqjVzh9AubSjcUzL/femvdl2xiU883emrluQW8=
=mAt/
-----END PGP SIGNATURE-----