Summary

RSA has released a security update to address CVE-2026-31431 (Copy Fail), a high-severity Linux kernel vulnerability affecting appliances based on SLES 15 SP6. A patch update addressing this issue has been released.

Affected Products

• RSA Authentication Manager: 8.9 patch 1 or earlier

Recommendation

RSA recommends that you apply AM 8.9 Patch 2 to mitigate the risk. For patch installation instructions, see RSA Authentication Manager 8.9 Patches and Hotfixes Readme.

Details

Third-party components are updated for the following vulnerabilities:

• CVE ID: CVE-2026-31431
• CVSS Score: 7.8
• CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
• Vulnerability Type: Local Privilege Escalation
• Component: Linux Kernel (AF_ALG / algif_aead)

Severity Rating

For information about severity ratings, refer to the RSA Vulnerability Disclosure Policy. RSA recommends that customers consider both the base score and any relevant temporal and environmental scores when assessing the severity of a particular vulnerability. See the National Vulnerability Database (NVD) for individual scores for each CVE.

EOPS Policy

RSA has a defined End of Primary Support policy associated with all major versions. Please refer to the Product Version Life Cycle for additional details.

Legal Information

Read and use the information in this RSA Security Advisory to assist in avoiding any situation that might arise from the problems described herein. If you have any questions regarding this advisory, contact RSA Technical Support. RSA Security LLC and its affiliates, including without limitation, distribute RSA Security Advisories in order to bring to the attention of users of the affected RSA products, important security information.
RSA recommends that all users determine the applicability of this information to their individual situations and take appropriate action. The information set forth herein is provided "as is" without warranty of any kind. RSA disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement.
In no event shall RSA, its affiliates, or its suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if RSA, its affiliates, or its suppliers have been advised of the possibility of such damages. Some jurisdictions do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation may not apply.