Bug 2508414 (CVE-2026-55995)

Summary: CVE-2026-55995 open-isns: open-iscsi: Denial of Service via double-free in iSNS attribute decoder
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in open-iscsi. An unauthenticated man-in-the-middle (MITM) attacker can exploit a double-free vulnerability in the iSNS attribute decoder. This can lead to a denial of service (DoS) condition, making the affected system unavailable.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2508456    
Bug Blocks:    

Description OSIDB Bzimport 2026-07-29 14:02:04 UTC
A Double Free vulnerability in open-iscsi allows an unauthenticated MITM attacker to cause DoS.






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