Origin Validation Error Affecting github.com/go-chi/chi/v5/middleware package, versions <5.3.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-GOLANG-GITHUBCOMGOCHICHIV5MIDDLEWARE-17660791
- published28 Jun 2026
- disclosed25 Jun 2026
- creditconvto
Introduced: 25 Jun 2026
CVE-2026-72817 (opens in a new tab)How to fix?
Upgrade github.com/go-chi/chi/v5/middleware to version 5.3.0 or higher.
Overview
Affected versions of this package are vulnerable to Origin Validation Error via the RealIP process. An attacker can cause misidentification of the request source IP by manipulating the X-Forwarded-For header, potentially bypassing access controls or falsifying request logs.