Improper Control of Generation of Code in Kibana Leading to Privilege Escalation

published 2026-09-03 2 mo ago modified 2026-09-09 2 mo ago also BIT-elk-2026-78593 , BIT-kibana-2026-78593 , EUVD-2026-70658

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits: 0; none known

An insufficiently validated configuration field in Kibana's Cribl integration allows an authenticated user holding Kibana Fleet management privileges to inject attacker-controlled expressions into a server-side script template, resulting in an Elasticsearch ingest pipeline being written beyond the caller's authorized Elasticsearch permissions.

Patch / fix

fixed in 4

bitnami elk 8.19.21, 9.4.6, 9.5.3
bitnami kibana 8.19.21, 9.4.6, 9.5.3
elastic kibana 8.19.21, 9.4.6, 9.5.3
elasticsearch kibana 8.19.21, 9.4.6, 9.5.3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 mo ago (2026-09-03)

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
OSV	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	elk	>=8.0.0, <8.19.21 >=9.0.0, <9.4.6 >=9.5.0, <9.5.3	8.19.21 9.4.6 9.5.3
bitnami	kibana	>=8.0.0, <8.19.21 >=9.0.0, <9.4.6 >=9.5.0, <9.5.3	8.19.21 9.4.6 9.5.3

Affected products

Elastic Kibana

Classification

Weakness

CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary