CVE-2026-26936

highpriority · track · 30EPSS 0.004 · 31 %ileDEEUNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.37% (31st) EPSS

CVSS 7.5 · high

Is it mine?

14 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

Inefficient Regular Expression Complexity (CWE-1333) in the AI Inference Anonymization Engine in Kibana can lead Denial of Service via Regular Expression Exponential Blowup (CAPEC-492).

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondary · security@elastic.coexploitability 1.2 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · NCSC-NL NL

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1333USCWE-1333US

affected products (14)

Products and version ranges known to be affected.

Open Source Kibana <8.19.11all versionscert_bundDE
Open Source Kibana <9.2.5all versionscert_bundDE
Open Source Kibana< 8.19.11cert_bundDE
Open Source Kibana< 9.2.5cert_bundDE
Elastic Kibana≤ 9.0.0 ≤9.2.4enisa_euvdEU
Elastic Kibana≤ 8.0.0 ≤8.19.10enisa_euvdEU
Elastic Kibana≤ vers:unknown/*ncsc_nlNL
Open Source Kibana≤ vers:unknown/*ncsc_nlNL
elastic kibana8.0.0 → 8.19.11nvdUScpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
elastic kibana9.0.0 → 9.2.5nvdUScpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
Bitnami elk8.0.0 → 8.19.11osvUSpkg:bitnami/elk
Bitnami elk9.0.0 → 9.2.5osvUSpkg:bitnami/elk
Bitnami kibana8.0.0 → 8.19.11osvUSpkg:bitnami/kibana
Bitnami kibana9.0.0 → 9.2.5osvUSpkg:bitnami/kibana

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2026-0078Kwetsbaarheden verholpen in KibanaNL2026-03-05csaf · ncsc_nlNL
Elastic heeft kwetsbaarheden verholpen in Kibana.
WID-SEC-W-2026-0545Kibana: Mehrere Schwachstellen ermöglichen Denial of Service und Offenlegung von InformationenDeutsch2026-02-26csaf · cert_bundDE
Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Kibana ausnutzen, um einen Denial of Service Angriff durchzuführen oder vertrauliche Informationen offenzulegen.
BIT-elk-2026-26936Inefficient Regular Expression Complexity in Kibana Leading to Denial of Service2026-03-03vendor · osvUS
Inefficient Regular Expression Complexity (CWE-1333) in the AI Inference Anonymization Engine in Kibana can lead Denial of Service via Regular Expression Exponential Blowup (CAPEC-492).
BIT-kibana-2026-26936Inefficient Regular Expression Complexity in Kibana Leading to Denial of Service2026-03-03vendor · osvUS
Inefficient Regular Expression Complexity (CWE-1333) in the AI Inference Anonymization Engine in Kibana can lead Denial of Service via Regular Expression Exponential Blowup (CAPEC-492).

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2026-02-26modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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