What is GHSA-cg8q-4j53-92fq?

GHSA-cg8q-4j53-92fq is a security advisory published by GitHub Security Advisories with Low severity. Incorrect Authorization (CWE-863) in Fleet Server can lead to a denial of service of agent upload...

Which CVE IDs does GHSA-cg8q-4j53-92fq cover?

GHSA-cg8q-4j53-92fq covers the following CVE IDs: CVE-2026-78587. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-cg8q-4j53-92fq?

GHSA-cg8q-4j53-92fq has a CVSS v3 base score of 3.1, published by GitHub Security Advisories.

GHSA-cg8q-4j53-92fqLowCVSS 3.1

Incorrect Authorization (CWE-863) in Fleet Server can lead to a denial of service of agent upload...

Vendor

GitHub Security Advisories

Published

September 2, 2026

Last Modified

September 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-78587 →

📋 Description

Incorrect Authorization (CWE-863) in Fleet Server can lead to a denial of service of agent upload operations via Privilege Abuse (CAPEC-122). Fleet Server does not correctly verify session ownership during multi-part data upload operations, allowing any authenticated agent to interfere with the active upload sessions belonging to other enrolled agents.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-78587
https://discuss.elastic.co/t/fleet-server-8-19-16-9-3-5-9-4-2-security-update-esa-2026-164/390117
https://github.com/advisories/GHSA-cg8q-4j53-92fq