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{"bugzilla": {"description": "github.com/go-chi/chi/middleware: go-chi chi: IP spoofing via X-Forwarded-For header allows bypass of access controls", "id": "2515988", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515988"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-940", "details": ["A flaw was found in the `go-chi chi` RealIP middleware. This vulnerability allows a remote attacker to spoof their IP address by manipulating the `X-Forwarded-For` HTTP header. By exploiting this, an attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log entries, potentially leading to unauthorized access or misattribution of actions."], "mitigation": {"lang": "en:us", "value": "Do not rely on the `RealIP` middleware when accepting connections from untrusted networks. Instead, configure an upstream reverse proxy (such as NGINX or HAProxy) to overwrite or sanitize client-supplied `X-Forwarded-For` headers before forwarding traffic to the application."}, "name": "CVE-2026-72815", "package_state": [{"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Fix deferred", "package_name": "cryostat/cryostat-storage-rhel9", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:external_secrets_operator:1", "fix_state": "Fix deferred", "package_name": "external-secrets-operator/bitwarden-sdk-server-rhel9", "product_name": "External Secrets Operator for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:gatekeeper:3", "fix_state": "Fix deferred", "package_name": "gatekeeper/gatekeeper-rhel9", "product_name": "Gatekeeper 3"}, {"cpe": "cpe:/a:redhat:logging:6", "fix_state": "Not affected", "package_name": "openshift-logging/opa-openshift-rhel9", "product_name": "Logging Subsystem for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:migration_toolkit_applications:8", "fix_state": "Fix deferred", "package_name": "mta/mta-hub-rhel9", "product_name": "Migration Toolkit for Applications 8"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Not affected", "package_name": "multicluster-engine/assisted-image-service-rhel8", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Not affected", "package_name": "multicluster-engine/assisted-image-service-rhel9", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Fix deferred", "package_name": "openshift-pipelines-client", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Fix deferred", "package_name": "openshift-pipelines/pipelines-opc-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Not affected", "package_name": "openshift-serverless-1/kn-plugin-event-sender-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Fix deferred", "package_name": "flightctl", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "package_name": "rhacm2/observatorium-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Fix deferred", "package_name": "rhacm2/volsync-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:advanced_cluster_security:4", "fix_state": "Fix deferred", "package_name": "advanced-cluster-security/rhacs-main-rhel8", "product_name": "Red Hat Advanced Cluster Security 4"}, {"cpe": "cpe:/a:redhat:advanced_cluster_security:4", "fix_state": "Fix deferred", "package_name": "advanced-cluster-security/rhacs-main-rhel9", "product_name": "Red Hat Advanced Cluster Security 4"}, {"cpe": "cpe:/a:redhat:edge_manager:1", "fix_state": "Fix deferred", "package_name": "flightctl", "product_name": "Red Hat Edge Manager 1"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "osbuild-composer", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "caddy", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "cosign", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "prometheus3.13", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "prometheus3.5", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "spire1.14", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "spire1.15", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Fix deferred", "package_name": "rhoai/odh-model-registry-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "cri-o", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift4/ose-telemeter", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "package_name": "devspaces/udi-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_distributed_tracing:3", "fix_state": "Fix deferred", "package_name": "rhosdt/tempo-gateway-rhel9", "product_name": "Red Hat OpenShift distributed tracing 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Not affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Not affected", "package_name": "quay/quay-rhel9", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "package_name": "satellite/iop-ingress-rhel9", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Fix deferred", "package_name": "rhtas/ec-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:webterminal:1", "fix_state": "Not affected", "package_name": "web-terminal/web-terminal-tooling-rhel9", "product_name": "Red Hat Web Terminal"}, {"cpe": "cpe:/a:redhat:openshift_security_profiles_operator:1", "fix_state": "Fix deferred", "package_name": "compliance/openshift-selinuxd-rhel8", "product_name": "Security Profiles Operator"}, {"cpe": "cpe:/a:redhat:zero_trust_workload_identity_manager:1", "fix_state": "Fix deferred", "package_name": "zero-trust-workload-identity-manager/spiffe-spire-agent-rhel9", "product_name": "Zero Trust Workload Identity Manager"}, {"cpe": "cpe:/a:redhat:zero_trust_workload_identity_manager:0", "fix_state": "Fix deferred", "package_name": "zero-trust-workload-identity-manager/spiffe-spire-agent-rhel9", "product_name": "Zero Trust Workload Identity Manager - Tech Preview"}], "public_date": "2026-08-14T11:35:27Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72815\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72815\nhttps://github.com/go-chi/chi/security/advisories/GHSA-3fxj-6jh8-hvhx\nhttps://www.vulncheck.com/advisories/go-chi-chi-ip-spoofing-via-x-forwarded-for-header"], "statement": "An IP spoofing flaw exists in go-chi/chi's RealIP middleware. When parsing incoming HTTP requests, the middleware blindly trusts the leftmost IP address in the X-Forwarded-For header without verifying proxy chain trust. Remote unauthenticated attackers can supply arbitrary client IP addresses to bypass IP-based access control lists (ACLs), evade rate-limiting rules, or forge audit trail logs, posing a Low impact to confidentiality and integrity.", "threat_severity": "Moderate"}

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