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A double free vulnerability was discovered in the HDF5 library. (CVE-2026-17573)

0
Medium
VulnerabilityCVE-2026-17573gcveosvubuntu-cve-2026-17573cve-2026-17573ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-22-04-ltsubuntu-24-04-ltsubuntu-26-04-lts
Published: 07/27/2026 (07/27/2026, 16:17:00 UTC)
Source: GCVE Database
Product: hdf5

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.

CVSS v3.1

Score 5.5medium

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected software

Ubuntu:Pro:14.04:LTSmore threats →ghsa
hdf5
pkg:deb/ubuntu/hdf5?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=1.8.11-3ubuntu1=1.8.11-5ubuntu1=1.8.11-5ubuntu2=1.8.11-5ubuntu6=1.8.11-5ubuntu7=1.8.11-5ubuntu7.1=1.8.11-5ubuntu7.1+esm1=1.8.11-5ubuntu7.1+esm2
Ubuntu:Pro:16.04:LTSmore threats →ghsa
hdf5
pkg:deb/ubuntu/hdf5?arch=source&distro=esm-apps/xenial
Affected versions
=1.8.15-patch1+docs-4=1.8.15-patch1+docs-5=1.8.16+docs-1=1.8.16+docs-2=1.8.16+docs-3=1.8.16+docs-3ubuntu1=1.8.16+docs-4=1.8.16+docs-4ubuntu1=1.8.16+docs-4ubuntu1.1=1.8.16+docs-4ubuntu1.1+esm1=1.8.16+docs-4ubuntu1.1+esm2
Ubuntu:Pro:18.04:LTSmore threats →ghsa
hdf5
pkg:deb/ubuntu/hdf5?arch=source&distro=esm-apps/bionic
Affected versions
=1.10.0-patch1+docs-4=1.10.0-patch1+docs-4ubuntu0.1~esm1=1.10.0-patch1+docs-4ubuntu0.1~esm2
Ubuntu:Pro:20.04:LTSmore threats →ghsa
hdf5
pkg:deb/ubuntu/hdf5?arch=source&distro=esm-apps/focal
Affected versions
=1.10.4+repack-10=1.10.4+repack-11=1.10.4+repack-11ubuntu1=1.10.4+repack-11ubuntu1+esm1
Ubuntu:22.04:LTSmore threats →ghsa
hdf5
pkg:deb/ubuntu/hdf5?arch=source&distro=jammy
Affected versions
=1.10.6+repack-5=1.10.7+repack-4ubuntu1=1.10.7+repack-4ubuntu2
Ubuntu:24.04:LTSmore threats →ghsa
hdf5
pkg:deb/ubuntu/hdf5?arch=source&distro=noble
Affected versions
=1.10.8+repack1-1ubuntu1=1.10.10+repack-3ubuntu1=1.10.10+repack-3.1ubuntu3=1.10.10+repack-3.1ubuntu4
Ubuntu:26.04:LTSmore threats →ghsa
hdf5
pkg:deb/ubuntu/hdf5?arch=source&distro=resolute
Affected versions
=1.14.5+repack-3build1=1.14.5+repack-4=1.14.6+repack-2

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-17573
Osv Schema Version
1.7.0
Aliases
[]
Ecosystems
["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
Database Specific Severity
null
Cvss Version
3.1

Threat ID: 6a870a6facd9273b49b589cf

Added to database: 08/20/2026, 14:08:47 UTC

Last updated: 08/20/2026, 14:08:47 UTC

Views: 1

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