{"id":"UBUNTU-CVE-2024-7246","details":"It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy and the backend such that other clients see failed requests. It's also possible to use this vulnerability to leak other clients HTTP header keys, but not values. This occurs because the error status for a misencoded header is not cleared between header reads, resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until cleared from the HPACK table. Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4.","modified":"2026-05-20T16:20:15.876391054Z","published":"2024-08-06T11:16:00Z","upstream":["CVE-2024-7246"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-7246"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-7246"},{"type":"REPORT","url":"https://github.com/grpc/grpc/issues/36245"}],"affected":[{"package":{"name":"grpc","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/grpc?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.2-1","0.11.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libgrpc0","binary_version":"0.11.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-7246.json"}},{"package":{"name":"grpc","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/grpc?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.2-1","1.3.2-1ubuntu1","1.3.2-1.1~build1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3.2-1.1~build1","binary_name":"libgrpc++1"},{"binary_name":"libgrpc3","binary_version":"1.3.2-1.1~build1"},{"binary_version":"1.3.2-1.1~build1","binary_name":"protobuf-compiler-grpc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-7246.json"}},{"package":{"name":"grpc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/grpc?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.16.1-1","1.16.1-1ubuntu1","1.16.1-1ubuntu3","1.16.1-1ubuntu4","1.16.1-1ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_name":"libgrpc++1","binary_version":"1.16.1-1ubuntu5"},{"binary_name":"libgrpc6","binary_version":"1.16.1-1ubuntu5"},{"binary_name":"protobuf-compiler-grpc","binary_version":"1.16.1-1ubuntu5"},{"binary_name":"python3-grpcio","binary_version":"1.16.1-1ubuntu5"},{"binary_name":"ruby-grpc","binary_version":"1.16.1-1ubuntu5"},{"binary_name":"ruby-grpc-tools","binary_version":"1.16.1-1ubuntu5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-7246.json"}},{"package":{"name":"grpc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/grpc?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.30.2-3","1.30.2-3build1","1.30.2-3build3","1.30.2-3build5","1.30.2-3build6"],"ecosystem_specific":{"binaries":[{"binary_name":"libgrpc++1","binary_version":"1.30.2-3build6"},{"binary_version":"1.30.2-3build6","binary_name":"libgrpc10"},{"binary_name":"protobuf-compiler-grpc","binary_version":"1.30.2-3build6"},{"binary_name":"python3-grpcio","binary_version":"1.30.2-3build6"},{"binary_version":"1.30.2-3build6","binary_name":"ruby-grpc"},{"binary_version":"1.30.2-3build6","binary_name":"ruby-grpc-tools"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-7246.json"}},{"package":{"name":"grpc","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/grpc?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.51.1-3build3","1.51.1-3build4","1.51.1-4","1.51.1-4build1","1.51.1-4build2","1.51.1-4.1build3","1.51.1-4.1build4","1.51.1-4.1build5"],"ecosystem_specific":{"binaries":[{"binary_name":"libgrpc++1.51t64","binary_version":"1.51.1-4.1build5"},{"binary_name":"libgrpc29t64","binary_version":"1.51.1-4.1build5"},{"binary_version":"1.51.1-4.1build5","binary_name":"protobuf-compiler-grpc"},{"binary_version":"1.51.1-4.1build5","binary_name":"python3-grpcio"},{"binary_name":"ruby-grpc","binary_version":"1.51.1-4.1build5"},{"binary_name":"ruby-grpc-tools","binary_version":"1.51.1-4.1build5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-7246.json"}},{"package":{"name":"grpc","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/grpc?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.51.1-6","1.51.1-6build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libgrpc++1.51t64","binary_version":"1.51.1-6build1"},{"binary_name":"libgrpc29t64","binary_version":"1.51.1-6build1"},{"binary_name":"protobuf-compiler-grpc","binary_version":"1.51.1-6build1"},{"binary_version":"1.51.1-6build1","binary_name":"python3-grpcio"},{"binary_version":"1.51.1-6build1","binary_name":"ruby-grpc"},{"binary_name":"ruby-grpc-tools","binary_version":"1.51.1-6build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-7246.json"}},{"package":{"name":"grpc","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/grpc?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.51.1-6build1","1.51.1-7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