CVE-2025-57804

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{"bugzilla": {"description": "h2: h2 allows HTTP Request Smuggling due to illegal characters in headers", "id": "2390942", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2390942"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-93", "details": ["No description is available for this CVE."], "mitigation": {"lang": "en:us", "value": "Mitigation is either unavailable or does not meet Red Hat Product Security standards for usability, deployment, applicability, or stability."}, "name": "CVE-2025-57804", "package_state": [{"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh-dev-preview-beta/istio-ztunnel-rhel9", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh/istio-cni-rhel9", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh/istio-must-gather-rhel9", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh/istio-pilot-rhel9", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh/istio-proxyv2-rhel9", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh/istio-rhel9-operator", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh/istio-sail-operator-bundle", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Fix deferred", "package_name": "openshift-service-mesh-tech-preview/istio-ztunnel-rhel9", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Fix deferred", "package_name": "ansible-automation-platform-24/ee-supported-rhel9", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Fix deferred", "package_name": "ansible-automation-platform-25/ee-cloud-services-rhel9", "product_name": "Red Hat Ansible Automation Platform 2"}], "public_date": "2025-08-25T21:04:52Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-57804\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-57804\nhttps://github.com/python-hyper/h2/commit/035e9899f95e3709af098f578bfc3cd302298e3a\nhttps://github.com/python-hyper/h2/security/advisories/GHSA-847f-9342-265h"], "statement": "This issue is classified as Moderate rather than Important because its impact is constrained to integrity violations through request injection, without directly compromising confidentiality or availability. The flaw arises only in environments where HTTP/2 traffic is downgraded to HTTP/1.1 by intermediaries, which is not the default behavior in many deployments. Moreover, successful exploitation requires specific backend or proxy configurations that fail to sanitize CRLF sequences properly. As a result, the vulnerability does not universally expose systems to privilege escalation or data leakage but instead enables request manipulation under certain conditions.", "threat_severity": "Moderate"}

{"created": "2025-08-26T08:54:54.114502+00:00", "updated": "2025-08-26T08:54:54.114554+00:00", "vendors": ["hyper", "hyper$PRODUCT$h2"]}