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Elk: Authorization Bypass Through User-Controlled Key in Kibana Agent Builder Leading to Unauthorized Data Modification (CVE-2026-72680)

0
Medium
Published: 08/19/2026 (08/19/2026, 08:40:48 UTC)
Source: GCVE Database
Product: elk

Description

Kibana Agent Builder A2A JSON-RPC API endpoint derives the identifier of a stored conversation from a user-supplied input, and the ownership check on that identifier does not distinguish between a conversation that does not exist and one that exists but belongs to another user. As a result, an authenticated user holding only the Agent Builder read privilege can supply an identifier already in use by another user in the same space and cause that user's conversation to be replaced and reassigned to the requesting account. The original owner permanently loses access to the conversation and its history. The impact is limited to loss of integrity and availability of the affected conversation; the attacker does not read the overwritten content.

Affected software

Bitnamimore threats →ghsa
kibana
pkg:bitnami/kibana
Affected versions
>=9.2.0 <9.4.5

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
BIT-kibana-2026-72680
Osv Schema Version
1.6.2
Aliases
["CVE-2026-72680"]
Ecosystems
["Bitnami"]
Database Specific Severity
Medium
Cvss Version
null

Threat ID: 6a85b4a9acd9273b4925086c

Added to database: 08/19/2026, 13:50:33 UTC

Last updated: 08/19/2026, 13:52:02 UTC

Views: 1

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