Red Hat Enterprise Linux (open-iscsi): Schwachstelle ermöglicht Denial of Service
A denial of service vulnerability exists in the open-iscsi component of the iSNS package in Red Hat Enterprise Linux 10. The flaw is due to a double-free error in the iSNS attribute decoder. This vulnerability has been rated as important by Red Hat Product Security. A security update is available that addresses this issue by fixing the double-free condition.
AI Analysis
Technical Summary
CVE-2026-55995 is a denial of service vulnerability in the open-iscsi implementation within the iSNS package of Red Hat Enterprise Linux 10. The vulnerability arises from a double-free error in the iSNS attribute decoder, which can cause the affected daemon or tools to crash. Red Hat has released an update for isns-utils (version 0.103-1.el10_2.1) that resolves this issue. The vulnerability affects multiple architectures of Red Hat Enterprise Linux 10, including x86_64, IBM z Systems, Power little endian, and ARM 64. The iSNS protocol facilitates automated discovery and management of iSCSI and Fibre Channel devices on TCP/IP networks.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition by triggering a double-free error in the iSNS attribute decoder, leading to a crash of the iSNS daemon or related tools. This disrupts the management and configuration of iSCSI and Fibre Channel devices on affected systems. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released an official security update for isns-utils that fixes this vulnerability. Users of Red Hat Enterprise Linux 10 should apply the update isns-utils-0.103-1.el10_2.1 or later as provided in Red Hat Advisory RHSA-2026:53846. Refer to https://access.redhat.com/articles/11258 for detailed update instructions. Applying this update fully mitigates the issue.
Red Hat Enterprise Linux (open-iscsi): Schwachstelle ermöglicht Denial of Service
Description
A denial of service vulnerability exists in the open-iscsi component of the iSNS package in Red Hat Enterprise Linux 10. The flaw is due to a double-free error in the iSNS attribute decoder. This vulnerability has been rated as important by Red Hat Product Security. A security update is available that addresses this issue by fixing the double-free condition.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-55995 is a denial of service vulnerability in the open-iscsi implementation within the iSNS package of Red Hat Enterprise Linux 10. The vulnerability arises from a double-free error in the iSNS attribute decoder, which can cause the affected daemon or tools to crash. Red Hat has released an update for isns-utils (version 0.103-1.el10_2.1) that resolves this issue. The vulnerability affects multiple architectures of Red Hat Enterprise Linux 10, including x86_64, IBM z Systems, Power little endian, and ARM 64. The iSNS protocol facilitates automated discovery and management of iSCSI and Fibre Channel devices on TCP/IP networks.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition by triggering a double-free error in the iSNS attribute decoder, leading to a crash of the iSNS daemon or related tools. This disrupts the management and configuration of iSCSI and Fibre Channel devices on affected systems. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released an official security update for isns-utils that fixes this vulnerability. Users of Red Hat Enterprise Linux 10 should apply the update isns-utils-0.103-1.el10_2.1 or later as provided in Red Hat Advisory RHSA-2026:53846. Refer to https://access.redhat.com/articles/11258 for detailed update instructions. Applying this update fully mitigates the issue.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-93fw-mwmg-2g5m
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-55995"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
Threat ID: 6a6ae5559c2644c7f899be21
Added to database: 07/30/2026, 05:47:01 UTC
Last enriched: 09/12/2026, 07:32:07 UTC
Last updated: 09/13/2026, 10:01:31 UTC
Views: 127
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