CVE-2026-56150
CVE-2026-56150 is a medium-severity vulnerability in Elastic Fleet Server with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (23rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-770
- Affected product: Elastic Fleet Server
- Published:
- Last modified:
Description
Allocation of Resources Without Limits or Throttling (CWE-770) in Fleet Server can lead to a denial of service via Excessive Allocation (CAPEC-130). An attacker can submit a specially crafted request to an upload endpoint that causes excessive memory consumption, which may render Fleet Server unavailable.
Frequently asked questions
- What is CVE-2026-56150?
- Allocation of Resources Without Limits or Throttling (CWE-770) in Fleet Server can lead to a denial of service via Excessive Allocation (CAPEC-130). An attacker can submit a specially crafted request to an upload endpoint that causes excessive memory consumption, which may render Fleet Server unavailable.
- How severe is CVE-2026-56150?
- CVE-2026-56150 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-56150 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-56150?
- CVE-2026-56150 affects Elastic Fleet Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-56150?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-56150 published?
- CVE-2026-56150 was published on 2026-07-01 and last updated on 2026-07-06.
References
Affected products (1)
- cpe:2.3:a:elastic:fleet_server:*:*:*:*:*:*:*:*
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