CVE-2026-56675: Blind Replace Proxy Headers

Deleting proxy headers like 'x-forwarded-for' and injecting the raw socket IP into another header without recording the proxy presence. This destroys evidence of the proxy hop. If the application is hosted behind a local reverse proxy, downstream components may incorrectly trust external traffic as local (e.g., originating from 127.0.0.1). Evaluate or record

Provally CuratedPublic repositoryMediumMedium confidenceVerifiedApache-2.0JS
greprules fetch cve-2026-56675-blind-replace-proxy-headers --engine opengrep

Description

Deleting proxy headers like 'x-forwarded-for' and injecting the raw socket IP into another header without recording the proxy presence. This destroys evidence of the proxy hop. If the application is hosted behind a local reverse proxy, downstream components may incorrectly trust external traffic as local (e.g., originating from 127.0.0.1). Evaluate or record