6.5

CVE-2026-56144: elastic elasticsearch Incorrect Authorization

CVSS: 6.5v3.1MediumAnalyzed
AliasesCGA-2w4f-j559-gr47CGA-6frx-f45j-gx4pCGA-8484-mqf3-fwx4
Published 21-07-2026Last modified 26-08-2026
Open JSON

Vulnerability summary

CVE-2026-56144 is a medium (CVSS 6.5) Incorrect Authorization vulnerability in elastic elasticsearch. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.7% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.32%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-76H9-PM4X-2JJW

Timeline

  1. 21-07-2026
    PublishedVulnerability first disclosed.
  2. 26-08-2026
    Last modifiedVulnerability information updated.

Description

Incorrect Authorization (CWE-863) in Elasticsearch can allow an authenticated user with limited index privileges to exploit insufficient authorization controls in the ingest simulation feature. By targeting indices they are not authorized to access directly, the user can cause those indices' configured ingest pipelines to execute and return their output, potentially disclosing data processed or enriched by those pipelines. Additionally, the same feature can be used to retrieve index mapping metadata for indices the user are not authorized to access directly.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

+0.09 pp

From 0.23% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.32%

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

Chainguard6 products
  • elasticsearch-9.1All versions (No fix recorded)
  • elasticsearch-9.2All versions (No fix recorded)
  • ruby3.2-elasticsearch< 9.5.0-r0
  • ruby3.3-elasticsearch< 9.5.0-r0
  • ruby3.4-elasticsearch< 9.5.0-r1 | < 9.5.0-r0
Wolfi4 products
  • ruby3.2-elasticsearch< 9.5.0-r0
  • ruby3.3-elasticsearch< 9.5.0-r0
  • ruby3.4-elasticsearch< 9.5.0-r1 | < 9.5.0-r0
  • ruby4.0-elasticsearch< 9.5.0-r0
Elastic1 product
  • elasticsearch≥ 9.4.0, ≤ 9.4.3 | ≥ 9.0.0, ≤ 9.3.7 | ≥ 8.12.0, ≤ 8.19.18 | ≥ 8.12.0, < 8.19.18 | ≥ 9.0.0, < 9.3.7 | ≥ 9.4.0, < 9.4.4

3 vendors · 11 products

References

3 links