What is GHSA-jwv5-9w8q-m2j8?

GHSA-jwv5-9w8q-m2j8 is a security advisory published by GitHub Security Advisories with Critical severity. Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose...

Which CVE IDs does GHSA-jwv5-9w8q-m2j8 cover?

GHSA-jwv5-9w8q-m2j8 covers the following CVE IDs: CVE-2026-48579. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-jwv5-9w8q-m2j8?

GHSA-jwv5-9w8q-m2j8 has a CVSS v3 base score of 9.1, published by GitHub Security Advisories.

GHSA-jwv5-9w8q-m2j8CriticalCVSS 9.1

Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose...

Vendor

GitHub Security Advisories

Published

June 5, 2026

Last Modified

June 5, 2026

🔗 CVE IDs covered (1)

CVE-2026-48579 →

📋 Description

Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-48579
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48579
https://github.com/advisories/GHSA-jwv5-9w8q-m2j8