CVE-2026-8657 Affecting kibana-9.0-advanced package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-KIBANA90ADVANCED-19478491
- published2 Sept 2026
- disclosed16 May 2026
Introduced: 16 May 2026
CVE-2026-8657 (opens in a new tab)How to fix?
There is no fixed version for Minimos:latest kibana-9.0-advanced.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kibana-9.0-advanced package and not the kibana-9.0-advanced package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Versions of the package jsondiffpatch before 0.7.6 are vulnerable to Prototype Pollution via the jsondiffpatch.patch() and jsondiffpatch/formatters/jsonpatch.patch() APIs. An attacker can perform prototype pollution by supplying crafted delta or JSON Patch documents, as attacker-controlled property names and path segments are used to traverse and modify objects without restricting access to special properties like proto or constructor.prototype, allowing modification of Object.prototype.
References
- https://www.cve.org/CVERecord?id=CVE-2026-8657
- https://github.com/advisories/GHSA-j4fx-xxwh-2485
- https://osv.dev/vulnerability/MINI-6mcx-59xh-qh64
- https://osv.dev/vulnerability/CVE-2026-8657
- https://github.com/benjamine/jsondiffpatch/blob/96112c35a98f9201dd75d67fcee68a952c79e2fe/packages/jsondiffpatch/src/filters/nested.ts%23L107-L115
- https://github.com/benjamine/jsondiffpatch/blob/96112c35a98f9201dd75d67fcee68a952c79e2fe/packages/jsondiffpatch/src/filters/nested.ts%23L82-L87
- https://github.com/benjamine/jsondiffpatch/blob/96112c35a98f9201dd75d67fcee68a952c79e2fe/packages/jsondiffpatch/src/formatters/jsonpatch-apply.ts%23L146-L168
- https://github.com/benjamine/jsondiffpatch/blob/96112c35a98f9201dd75d67fcee68a952c79e2fe/packages/jsondiffpatch/src/formatters/jsonpatch-apply.ts%23L171-L199
- https://github.com/benjamine/jsondiffpatch/commit/381c0125efab49f6f0dbc08317d01d55717672af
- https://security.snyk.io/vuln/SNYK-JS-JSONDIFFPATCH-16322990
- https://gist.github.com/yuki-matsuhashi/e570fb1579ae1f3190059b622b0473fb