HTTP Response Splitting Affecting mongodb-search package, versions <0_git20260421-r2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.67% (48th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-MONGODBSEARCH-16702429
  • published16 May 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

CVE-2026-42578  (opens in a new tab)
CWE-113  (opens in a new tab)

How to fix?

Upgrade Minimos:latest mongodb-search to version 0_git20260421-r2 or higher.

NVD Description

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

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's HttpProxyHandler constructs HTTP CONNECT requests with header validation explicitly disabled. The newInitialMessage() method creates headers using DefaultHttpHeadersFactory.headersFactory().withValidation(false), then adds user-provided outboundHeaders without any CRLF validation. This allows an attacker who can influence the outbound headers to inject arbitrary HTTP headers into the CONNECT request sent to the proxy server. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

CVSS Base Scores

version 3.1