What is GHSA-g26f-g9f2-wqvr?

GHSA-g26f-g9f2-wqvr is a security advisory published by GitHub Security Advisories with High severity. Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to...

Which CVE IDs does GHSA-g26f-g9f2-wqvr cover?

GHSA-g26f-g9f2-wqvr covers the following CVE IDs: CVE-2026-55949. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-g26f-g9f2-wqvr?

GHSA-g26f-g9f2-wqvr has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-g26f-g9f2-wqvrHighCVSS 7.8

Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to...

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-55949 →

📋 Description

Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-55949
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55949
https://github.com/advisories/GHSA-g26f-g9f2-wqvr