CVE-2026-72665: Missing Authorization (CWE-862) in Kibana can lead to unauthorized execution of Osquery and Elastic Defend res

Routine

HIGH 8.1UPGRADE

CVE-2026-72665 is a high-severity flaw (CVSS 8.1) affecting kibana. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing Authorization (CWE-862) in Kibana can lead to unauthorized execution of Osquery and Elastic Defend response actions on managed hosts via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A Kibana user who is able to author and evaluate Elastic Security detection rules can cause response actions to be carried out against enrolled agents without holding the Osquery live query privileges or the Elastic Defend response actio

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-08-13
Last modified	2026-09-02

Publisher (CNA): Elastic · Vendor: elastic

Last updated 2026-09-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-13 20:17 UTCPublished CVE record published
2026-09-02 14:11 UTCUpdated Record last modified

elastic kibana UPGRADE

Affected: >= 8.5.0 and < 8.19.20 · >= 9.0.0 and < 9.4.5

Fixed in: 8.19.20, 9.4.5

Safe to downgrade to: a release before 8.5.0

1. Check installed version

apt-cache policy kibana || rpm -q kibana || kibana --version

2. UPGRADE to 8.19.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kibana

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kibana

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 8.5.0 (Debian / Ubuntu)

apt-cache madison kibana sudo apt install kibana=<VERSION_BEFORE_8.5.0> sudo apt-mark hold kibana

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kibana sudo dnf downgrade kibana-<VERSION_BEFORE_8.5.0> sudo dnf versionlock add kibana

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-72665?

kibana: upgrade to 8.19.20, 9.4.5. Exact commands for each OS are on this page.

Is CVE-2026-72665 being exploited?

CVE-2026-72665 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-72665 affect?

CVE-2026-72665 affects kibana. Severity is high (CVSS 8.1). Missing Authorization (CWE-862) in Kibana can lead to unauthorized execution of Osquery and Elastic Defend response actions on managed hosts via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A Kibana user who is able t

How urgent is CVE-2026-72665?

Priority 38/100. High severity

Software pages

Kibana vulnerabilities

Related CVEs

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CVE-2026-49088 MEDIUM 4.4 UPGRADE Insertion of Sensitive Information into Log File (CWE-532) in Kibana can lead to information disclosure
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References

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