CVE-2026-55995: Double-free in the iSNS attribute decoder in open-iscsi

Published Jul 29, 2026
·
Updated

A Double Free vulnerability in open-iscsi allows an unauthenticated MITM attacker to cause DoS.

This issue affects open-iscsi: from ? through 56718d4e9d1a4f51c30697b5c0534144bb41c9bb.

Other sources

Double-free in the iSNS attribute decoder in open-iscsi

Microsoft

Affected Software

3 affected componentsFixes available
open-iscsi open-iscsi<56718d4e9d1a4f51c30697b5c0534144bb41c9bb
Microsoft azl3 isns-utils 0.102-1<0.102-2
0.102-2
Microsoft azl3 isns-utils 0.102-2<0.102-2
0.102-2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.102-2

Event History

Jul 29, 2026
CVE Published
via MITRE·01:43 PM
Data Sourced
via MITRE·01:43 PM
DescriptionWeakness
Data Sourced
via Red Hat·02:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·02:16 PM
DescriptionSeverityWeakness
Aug 7, 2026
Data Sourced
via Microsoft·08:15 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:15 AM
DescriptionSeverity
Updated
via Microsoft·08:15 AM
Affected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-55995?

CVE-2026-55995 has a high severity rating of 8.7 on the CVSS scale.

2

How do I fix CVE-2026-55995?

To mitigate CVE-2026-55995, it is recommended to update to the latest version of open-iscsi that addresses this vulnerability.

3

What type of vulnerability is CVE-2026-55995?

CVE-2026-55995 is classified as a Double Free vulnerability.

4

Who is affected by CVE-2026-55995?

CVE-2026-55995 affects users of open-iscsi versions prior to the commit 56718d4e9d1a4f51c30697b5c0534144bb41c9bb.

5

What impact does CVE-2026-55995 have on systems?

An unauthenticated MITM attacker can exploit CVE-2026-55995 to cause a Denial of Service (DoS) on affected systems.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203