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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-72817

CVE-2026-72817: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityMedium6.5

    Medium [CVE-2026-72817] IP spoofing via X-Forwarded-For header manipulation

    CVE-2026-72817Source published Source updated

    go-chi/chi versions 0.9.0 before 5.3.0 contains an IP spoofing vulnerability in the RealIP middleware, which resolves the request source IP (Request. RemoteAddr) using the first IP in the X-Forwarded-For header without validating trusted proxies. A malicious client can prepend a forged IP as the first value of the X-Forwarded-For header to spoof the request source IP, potentially bypassing access controls or falsifying request logs. A flaw was found in the `go-chi/chi` component. A remote attacker can exploit this by prepending a forged IP address to the `X-Forwarded-For` header, leading to IP spoofing. The middleware parses the first IP address in the `X-Forwarded-For` header without verifying if the immediate HTTP proxy peer is trusted. An unauthenticated attacker can prepend an…

    Affected products in this advisory
    • Red Hat Hardened Images
    • Cryostat 4
    • External Secrets Operator for Red Hat OpenShift
    • Gatekeeper 3

    19 more entries in the full advisory.

    Source-reported affected versions
    • < 0.9.0
    • < 5.3.0
    Source-reported fixed versions
    • spire1-14-main-1.14.7-0.4.hum1
    • spire1-15-main-1.15.2-0.4.hum1
    • cosign-main-3.1.3-0.1.hum1
    • RHSA-2026:49718

    2 more entries in the full advisory.

    Mitigation guidance
    • Disable the default `RealIP` middleware and replace it with a proxy-aware middleware (such as `httputil.ReverseProxy` or custom header parsing) that strictly validates upstream reverse proxies against an explicit list of trusted CIDR ranges before accepting `X-Forwarded-For` headers.
    Full advisory and evidenceOpen source bulletin

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