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Vulnerabilities

Vulnerability · CVE-2026-63136

CVE-2026-63136 is listed by Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130)..

Published Jul 21, 2026 · catalog updated Oct 24, 2026 · the affected product

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-63136. EPSS is 0.42%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.42%
Remediation
Version ranges on file
Affected products
cpe elastic/elasticsearch

CVE-2026-63136 is listed by Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130)..

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe elastic/elasticsearch< 8.19.15
  • cpe elastic/elasticsearch< 9.2.9
  • cpe elastic/elasticsearch< 9.3.4

How to fix CVE-2026-63136

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-63136. EPSS is 0.42%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Compare what you have installed with < 8.19.15, < 9.2.9, < 9.3.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.42%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Elasticsearch security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 21, 2026 · Monitored products — high

    Detected

    CVE-2026-63136 is listed by Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130)..

  2. Oct 24, 2026 · Monitored products — high

    Updated

    CVE-2026-63136 is listed by Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130)..

Sources

  • CVE.orgVulnerability recordCVE-2026-63136

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2026-63136

    Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiri

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 2, 2026
  • Monitored products — highNov 1, 2026