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CVE-2026-17573

Double Free in H5D__chunk_copy() in HDF5 via a Crafted Chunk-Index Size Field

Published: Jul 27, 2026Updated: Aug 18, 2026 Sources: CVE List NVDCWE-415

Description

A double free vulnerability was discovered in the HDF5 library. Processing a crafted HDF5 file containing an oversized chunk size field via h5repack may cause the application to abort due to a double free.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High

Weaknesses

Affected Products

The HDF Group
oss-projectaka hdf5, hdf group
hdfgroup
oss-project·USaka hdf5
hdf5LibraryLibrary
Databases

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

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