Bug 2507552 (CVE-2026-17574)

Summary: CVE-2026-17574 HDF5: HDF5: Denial of Service via crafted HDF5 file processing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: alinfoot, bbrownin, dtrifiro, rbryant, weaton
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in HDF5. A local user can exploit this vulnerability by processing a specially crafted HDF5 file. This file, containing an attribute with an invalid variable-length datatype, can cause a NULL pointer dereference, leading to an application crash and resulting in a denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2519675, 2519676    
Bug Blocks:    

Description OSIDB Bzimport 2026-07-27 16:01:56 UTC
HDF5 contains a NULL pointer dereference vulnerability. Processing a crafted HDF5 file containing an attribute with an invalid variable-length datatype type field may cause the application to crash when the attribute is read.