CVE-2026-78587
3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Elastic | Fleet Server | 8.0.0 <= 8.19.15 | affected |
| Elastic | Fleet Server | 9.0.0 <= 9.3.4 | affected |
| Elastic | Fleet Server | 9.4.0 <= 9.4.1 | affected |
Weaknesses
- CWE-863: CWE-863 Incorrect Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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