Skip to main content
MEDIUM

CVE-2026-0531

CVSS v3

6.5

MEDIUM

EPSS Score

0.5 %

exploit probability, as of 2026-10-18

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for kibana.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • elkBitnamiall versions · fixed in 8.19.10and 1 other package

Vendor advisories

  • CVE-2026-0531 Red Hat Product Security1 known affected

    kibana: allocation of resources without limits or throttling via specially crafted bulk retrieval request

    openshift-logging/kibana6-rhel8 as a component of Logging Subsystem for Red Hat OpenShift

Full record on NVD

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted bulk retrieval request. This requires an attacker to have low-level privileges equivalent to the viewer role, which grants read access to agent policies. The crafted request can cause the application to perform redundant database retrieval operations that immediately consume memory until the server crashes and becomes unavailable to all users.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published
2026-01-13
Last Modified
2026-01-22

Frequently asked questions

What is CVE-2026-0531?

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted bulk retrieval request. This requires an attacker to have low-level privileges equivalent to the viewer role, which grants read access to agent policies. The crafted request can cause the application to perform redundant database retrieval operations that immediately consume memory until the server crashes and becomes unavailable to all users.

Is CVE-2026-0531 actively exploited?

Active exploitation of CVE-2026-0531 has not been confirmed. Its EPSS score was 0.5% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-0531?

CVE-2026-0531 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Running kibana? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this productCISA KEV additions, October 2026Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database