CVE-2026-1525 Affecting kibana-8.18-oci-entrypoint package, versions *


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-KIBANA818OCIENTRYPOINT-15674231
  • published17 Mar 2026
  • disclosed12 Mar 2026

Introduced: 12 Mar 2026

NewCVE-2026-1525  (opens in a new tab)

How to fix?

There is no fixed version for Minimos:latest kibana-8.18-oci-entrypoint.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kibana-8.18-oci-entrypoint package and not the kibana-8.18-oci-entrypoint package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Undici allows duplicate HTTP Content-Length headers when they are provided in an array with case-variant names (e.g., Content-Length and content-length). This produces malformed HTTP/1.1 requests with multiple conflicting Content-Length values on the wire.

Who is impacted:

  • Applications using undici.request(), undici.Client, or similar low-level APIs with headers passed as flat arrays
  • Applications that accept user-controlled header names without case-normalization

Potential consequences:

  • Denial of Service: Strict HTTP parsers (proxies, servers) will reject requests with duplicate Content-Length headers (400 Bad Request)
  • HTTP Request Smuggling: In deployments where an intermediary and backend interpret duplicate headers inconsistently (e.g., one uses the first value, the other uses the last), this can enable request smuggling attacks leading to ACL bypass, cache poisoning, or credential hijacking

CVSS Base Scores

version 3.1