CVE catalog

CVE-2026-26200

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Feb 19, 2026, 7:19:10 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.42% · Oct 25, 2026

HDF5 is software for managing data. Prior to version 1.14.4-2, an attacker who can control an `h5` file parsed by HDF5 can trigger a write-based heap buffer overflow condition. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems. Real-world exploitability of this issue in terms of remote-code execution is currently unknown. Version 1.14.4-2 fixes the issue.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	hdf5	sid	`2.2.0+repack-5`	vulnerable
Debian	hdf5	forky	`2.2.0+repack-5`	vulnerable
Debian	hdf5	trixie	`1.14.5+repack-3`	vulnerable
Debian	hdf5	bookworm	`1.10.8+repack1-1`	vulnerable
Cpe	hdf5	Not reported	Not reported	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	hdf5	source	sid	`(unfixed)`	unimportant	Not reported	Not reported
Debian	hdf5	source	forky	`(unfixed)`	unimportant	Not reported	Not reported
Debian	hdf5	source	trixie	`(unfixed)`	unimportant	Not reported	Not reported
Debian	hdf5	source	bookworm	`(unfixed)`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[hdf5-helpers]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[hdf5-tools]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-103]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-103-1]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-cpp-103]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-cpp-103-1]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-dev]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-doc]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · all · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · all · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-fortran-102]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-hl-100]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-hl-cpp-100]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-hl-fortran-100]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-java]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · all · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · all · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-jni]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-mpich-103]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-mpich-103-1]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-mpich-cpp-103-1]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-mpich-dev]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-mpich-fortran-102]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
[libhdf5-mpich-hl-100]Affected
Source package: [hdf5]
Details (2)
- 1.10.8+repack1-1 · amd64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12
- 1.10.8+repack1-1 · arm64 · bookworm
  Affected
  nvd · hdf5 · debian · bookworm; nvd · hdf5 · debian · 12

Next results

Observed: Oct 24, 2026, 12:39:14 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]