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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-72815

go-chi chi v5.2.1 IP Spoofing via X-Forwarded-For Header

Description

go-chi chi versions >= 5.2.1 and before 5.3.0 contain an IP spoofing vulnerability in the RealIP middleware, which blindly trusts the first (leftmost) value of the X-Forwarded-For HTTP header. A remote attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log entries, by supplying a spoofed IP address in the X-Forwarded-For header. The issue is fixed in version 5.3.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

go-chi chi

Default version status: unaffected

  • 5.2.1 to < 5.3.0affected
  • 5.3.0unaffected
pkg:golang/github.com/go-chi/chi/v5

References