CVE-2026-12143 Affecting kibana-9 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-KIBANA9-17350591
- published17 Jun 2026
- disclosed12 Jun 2026
Introduced: 12 Jun 2026
NewCVE-2026-12143 (opens in a new tab)How to fix?
There is no fixed version for Minimos:latest kibana-9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kibana-9 package and not the kibana-9 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
form-data is a library for creating readable multipart/form-data streams. In versions through 4.0.5, the field argument to FormData#append and the filename option are concatenated verbatim into the Content-Disposition header without escaping carriage return (CR), line feed (LF), or double-quote (") characters. An application that passes attacker-controlled data as a field name or filename (for example, an API gateway that turns JSON object keys into multipart field names) allows the attacker to terminate the header line and inject additional headers, or to smuggle entire additional multipart parts, into the request the application forwards to a backend. This can let the attacker add or override form fields (e.g. set is_admin=true) seen by the downstream parser. This is an instance of CWE-93 (CRLF injection). The fix escapes CR, LF, and " as %0D, %0A, and %22 in field names and filenames, matching the serialization browsers use per the WHATWG HTML multipart/form-data encoding algorithm. Exploitation requires the consuming application to use untrusted input as a field name or filename; applications that use only fixed/trusted field names are not affected. Fixed in 2.5.6, 3.0.5, and 4.0.6.
References
- https://www.cve.org/CVERecord?id=CVE-2026-12143
- https://github.com/advisories/GHSA-hmw2-7cc7-3qxx
- https://osv.dev/vulnerability/MINI-qrmq-rx9f-9pwp
- https://osv.dev/vulnerability/CVE-2026-12143
- https://cwe.mitre.org/data/definitions/93.html
- https://github.com/form-data/form-data/commit/64190db548c0179e37206858e39f27cf513e9435
- https://github.com/form-data/form-data/commit/be3f3cf553978bac15a5182f1f3c3d2d38ccf229
- https://github.com/form-data/form-data/commit/c7133499c2ee1b80c678e411244f4442bf902045
- https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data
- https://www.npmjs.com/package/form-data
- https://github.com/form-data/form-data/security/advisories/GHSA-hmw2-7cc7-3qxx