RHSA-2026:61249 - Security Advisory

Topic

An update for isns-utils is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The iSNS package contains the daemon and tools to setup a iSNS server, and iSNS client tools. The Internet Storage Name Service (iSNS) protocol allows automated discovery, management and configuration of iSCSI and Fibre Channel devices (using iFCP gateways) on a TCP/IP network.

Security Fix(es):

• open-isns: open-iscsi: Denial of Service via double-free in iSNS attribute decoder (CVE-2026-55995)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64

Fixes

• BZ - 2508414 - CVE-2026-55995 open-isns: open-iscsi: Denial of Service via double-free in iSNS attribute decoder

CVEs

• CVE-2026-55995

References

• https://access.redhat.com/security/updates/classification/#important