7.5

CVE-2026-26936: elastic kibana

CVSS: 7.5v3.1HighAnalyzed
Published 26-02-2026Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2026-26936 is a high (CVSS 7.5) vulnerability in elastic kibana. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.3% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.54%
0%100%
Low · +0.21 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-02-2026
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

+0.21 pp

From 0.33% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Elastic1 product
  • kibana≥ 9.0.0, ≤ 9.2.4 | ≥ 8.0.0, ≤ 8.19.10 | ≥ 8.0.0, < 8.19.11 | ≥ 9.0.0, < 9.2.5

1 vendor · 1 product

References

1 links