CVE-2026-78596

mediumpriority · track · 0OT risk · elevatedEPSS 0.003 · 19 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.27% (19th) EPSS

CVSS 4.3 · medium

Is it mine?

12 products

Check your exposure

Who says so?

2 sources

osv · cert_bund

EPSS · scored 2026-10-27

Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthorized modification of data via Privilege Abuse (CAPEC-122). An authenticated user holding Security read-level access in a single Kibana space could trigger Entity Analytics migration operations that perform privileged writes across all Kibana spaces, regardless of that user's actual access scope.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nsecondary · security@elastic.coexploitability 2.8 · impact 1.4

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862US

affected products (12)

Products and version ranges known to be affected.

Open Source Kibana <8.19.21all versionscert_bundDE
Open Source Kibana <9.4.6all versionscert_bundDE
Open Source Kibana <9.5.3all versionscert_bundDE
Open Source Kibana< 8.19.21cert_bundDE
Open Source Kibana< 9.4.6cert_bundDE
Open Source Kibana< 9.5.3cert_bundDE
Bitnami elk8.18.3 → 8.19.21osvUSpkg:bitnami/elk
Bitnami elk9.0.3 → 9.4.6osvUSpkg:bitnami/elk
Bitnami elk9.5.0 → 9.5.3osvUSpkg:bitnami/elk
Bitnami kibana8.18.3 → 8.19.21osvUSpkg:bitnami/kibana
Bitnami kibana9.0.3 → 9.4.6osvUSpkg:bitnami/kibana
Bitnami kibana9.5.0 → 9.5.3osvUSpkg:bitnami/kibana

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3177Kibana: Mehrere SchwachstellenDeutsch2026-09-03csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Kibana ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service herbeizuführen, sowie um Daten zu manipulieren oder offenzulegen.
BIT-elk-2026-78596Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations2026-09-09vendor · osvUS
Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthorized modification of data via Privilege Abuse (CAPEC-122). An authenticated user holding Security read-level access in a single Kibana space could trigger Entity Analytics migration operations that perform privileged writes across all Kibana spaces, regardless of that user's actual access scope.
BIT-kibana-2026-78596Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations2026-09-09vendor · osvUS
Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthorized modification of data via Privilege Abuse (CAPEC-122). An authenticated user holding Security read-level access in a single Kibana space could trigger Entity Analytics migration operations that perform privileged writes across all Kibana spaces, regardless of that user's actual access scope.

also known as (2)

Other names and identifiers for this entity.

BIT-elk-2026-78596osv
BIT-kibana-2026-78596osv

sources

Which sources assert this record, and when.

osv cert_bund NVD CVE.org MITRE

published 2026-09-03modified 2026-09-03

references (1) nvd

External citations — patches, advisories, analysis.

https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-154/390161

scry

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