RHSA-2026:53846: Important: isns-utils security update

Published Aug 11, 2026
·
Updated

Important: isns-utils security update

Other sources

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.

Red Hat

Affected Software

36 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64
redhat/isns-utils<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-debuginfo<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-debugsource<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-libs<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-libs-debuginfo<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-debuginfo<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-debugsource<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-libs<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-libs-debuginfo<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-debuginfo<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-debugsource<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-libs<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils-libs-debuginfo<0.103-1.el10_2.1
0.103-1.el10_2.1
redhat/isns-utils<0.103-1.el10_2.1.aa
0.103-1.el10_2.1.aa
redhat/isns-utils-debuginfo<0.103-1.el10_2.1.aa
0.103-1.el10_2.1.aa
redhat/isns-utils-debugsource<0.103-1.el10_2.1.aa
0.103-1.el10_2.1.aa
redhat/isns-utils-libs<0.103-1.el10_2.1.aa
0.103-1.el10_2.1.aa
redhat/isns-utils-libs-debuginfo<0.103-1.el10_2.1.aa
0.103-1.el10_2.1.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/isns-utils to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1
  2. Upgrade

    Upgrade redhat/isns-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1
  3. Upgrade

    Upgrade redhat/isns-utils-debugsource to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1
  4. Upgrade

    Upgrade redhat/isns-utils-libs to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1
  5. Upgrade

    Upgrade redhat/isns-utils-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1
  6. Upgrade

    Upgrade redhat/isns-utils to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1.aa
  7. Upgrade

    Upgrade redhat/isns-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1.aa
  8. Upgrade

    Upgrade redhat/isns-utils-debugsource to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1.aa
  9. Upgrade

    Upgrade redhat/isns-utils-libs to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1.aa
  10. Upgrade

    Upgrade redhat/isns-utils-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.103-1.el10_2.1.aa

Event History

Aug 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·06:36 PM
Data Sourced
via Red Hat·06:36 PM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:53846?

The severity of RHSA-2026:53846 is classified as high with a CVSS score of 7.

2

What is the main purpose of the isns-utils package in RHSA-2026:53846?

The isns-utils package facilitates the setup and management of iSNS servers and client tools for iSCSI and Fibre Channel devices.

3

How do I fix the vulnerability mentioned in RHSA-2026:53846?

To fix the vulnerability in RHSA-2026:53846, update the isns-utils package and its related components to the latest version provided by Red Hat.

4

What systems are affected by RHSA-2026:53846?

The affected systems include Red Hat Enterprise Linux for ARM 64, x86_64, and Power architectures.

5

Is there a security update available for RHSA-2026:53846?

Yes, a security update is available for RHSA-2026:53846 to address the identified vulnerabilities in the isns-utils package.

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