What is GHSA-9mx5-fj64-m52r?

GHSA-9mx5-fj64-m52r is a security advisory published by GitHub Security Advisories with Medium severity. Heap-based buffer overflow in the SOHM list-index deserialization code in HDF5 through 2.1.1 on...

Which CVE IDs does GHSA-9mx5-fj64-m52r cover?

GHSA-9mx5-fj64-m52r covers the following CVE IDs: CVE-2026-17572. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9mx5-fj64-m52r?

GHSA-9mx5-fj64-m52r has a CVSS v3 base score of 5.5, published by GitHub Security Advisories.

GHSA-9mx5-fj64-m52rMediumCVSS 5.5

Heap-based buffer overflow in the SOHM list-index deserialization code in HDF5 through 2.1.1 on...

Vendor

GitHub Security Advisories

Published

July 27, 2026

Last Modified

August 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-17572 →

📋 Description

Heap-based buffer overflow in the SOHM list-index deserialization code in HDF5 through 2.1.1 on all platforms allows attackers to cause a denial of service (crash) via a crafted HDF5 file whose shared-message list index declares a num_messages count exceeding list_max, triggering out-of-bounds heap reads and writes in H5SM__cache_list_deserialize and H5SM__cache_list_verify_chksum.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-17572
https://github.com/HDFGroup/hdf5/issues/6501
https://github.com/advisories/GHSA-9mx5-fj64-m52r