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CVE-2026-72676

Improper Control of Generation of Code in Fleet Server Leading to Code Injection

Medium6.5EPSS 0.55%
Published
Updated
Reserved
Assigned by
elastic

Description

Improper Control of Generation of Code ('Code Injection') (CWE-94) in Fleet Server can lead to the execution of attacker-supplied script content via Code Injection (CAPEC-242). Kibana accepted an identifier for an output configuration without restricting it to safe characters. That identifier is later placed into a server-side script that Fleet Server builds as part of routine agent policy processing, so script syntax embedded in the identifier became part of the script that was executed rather than being treated as data.

Scores

CVSS scores of CVE-2026-72676, by who scored it
Scored byCVSSScoreVector
elasticCNA (assigner)3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVDNVD · Analyzed3.1Critical9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS (exploitation in 30 days)
0.55% · top 54% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

Affected products

  • Elastic · Fleet Server

    • affected 8.5.0 – ≤ 8.19.19
    • affected 9.0.0 – ≤ 9.4.4
    • affected 9.5.0

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .