Security Bulletin
Summary
There are multiple vulnerabilities in IBM SDK Java Technology Edition,Version 8 used by AIX. AIX has addressed the applicable CVEs.
Vulnerability Details
CVEID: CVE-2026-61308
DESCRIPTION: Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Java SE. While the vulnerability is in Java SE attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Java SE accessible data.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 6.8
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N)
CVEID: CVE-2026-70907
DESCRIPTION: Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE.
CWE: CWE-284: Improper Access Control
CVSS Source: secalert_us@oracle.com
CVSS Base score: 5.3
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2026-60589
DESCRIPTION: Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE accessible data.
CWE: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CVSS Source: secalert_us@oracle.com
CVSS Base score: 3.7
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| AIX | 7.2 |
| AIX | 7.3 |
| VIOS | 4.1 |
The vulnerabilities in the following filesets are being addressed:
key_fileset = java
| Fileset | Lower Level | Upper Level | Level KEY |
| Java8.jre | 8.0.0.0 | 8.0.0.870 | key_w_fs |
| Java8.sdk | 8.0.0.0 | 8.0.0.870 | key_w_fs |
| Java8_64.jre | 8.0.0.0 | 8.0.0.870 | key_w_fs |
| Java8_64.sdk | 8.0.0.0 | 8.0.0.870 | key_w_fs |
Note: To find out whether the affected Java filesets are installed on your systems, refer to the lslpp command found in AIX user's guide.
Example: lslpp -L | grep -i java
Remediation/Fixes
A. FIXES
AIX and VIOS fixes are available.
The latest level of Java is available from Fix Central:
+32-bit,+pSeries&function=all
+64-bit,+pSeries&function=all
The AIX and VIOS fixes can be downloaded via https from:
https://aix.software.ibm.com/aix/efixes/security/java_oct2026_fix.tar
The link above is to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package.
The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels.
| Java | Fix (*.Z) | KEY |
| 8.0.0 | java8_32_installp_8.0.0.871.tar | key_w_fix |
| 8.0.0 | java8_64_installp_8.0.0.871.tar | key_w_fix |
To extract the fixes from the tar file:
tar xvf java_oct2026_fix.tar
cd java_oct2026_fix
Verify you have retrieved the fixes intact:
The checksums below were generated using the following command:
"openssl dgst -sha256 [filename]"
| openssl dgst -sha256 | filename | KEY |
| a2bb9ff8522b4c23b749d9d26f7985e3e791cc875c63940fe831bce5508f9904 | java8_32_installp_8.0.0.871.tar | key_w_csum |
| f99d76d55bbd9a51918b8d9645b4904aa7cf4a80da1c15836045b6d56c4afff0 | java8_64_installp_8.0.0.871.tar | key_w_csum |
The checksums below were generated using the following command:
"openssl dgst -sha512 [filename]"
| openssl dgst -sha512 | filename | KEY |
| 80d3c4d75502687ebe64c189107c297c05301207f4a3b2999f8391978ddfaa4b028adb14e134c29710f0d8e6ea4aac677b0aeb4396028e52a19f4697e94536ad | java8_32_installp_8.0.0.871.tar | key_4K_w_csum |
| d624fedbb1fd3c99c596de422c31cf1198e36b7cbbc9230684c87e01b3ecdcceb80a940472ded59418e89069ce63d604e9077c16ad3be29cb01403a9e0689e1b | java8_64_installp_8.0.0.871.tar | key_4K_w_csum |
These sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM Support at
http://ibm.com/support/ and describe the discrepancy.
openssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file]
openssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file]
Published advisory OpenSSL signature file location:
https://aix.software.ibm.com/aix/efixes/security/java_oct2026_advisory.asc.sig
B. FIX AND INTERIM FIX INSTALLATION
If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding.
To preview a fix installation:
installp -a -d fix_name -p all # where fix_name is the name of the
# fix package being previewed.
To install a fix package:
installp -a -d fix_name -X all # where fix_name is the name of the
# fix package being installed.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
19 Oct 2026: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
19 October 2026
Initial Publish date:
19 October 2026
UID
ibm17292996