{"id":"UBUNTU-CVE-2026-33814","details":"When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.","modified":"2026-06-30T18:17:24.170387175Z","published":"2026-05-07T20:16:00Z","related":["USN-8430-1","USN-8471-1","USN-8472-1","USN-8473-1"],"upstream":["CVE-2026-33814"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-33814"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-33814"},{"type":"REPORT","url":"https://go-review.googlesource.com/c/go/+/761581"},{"type":"REPORT","url":"https://go-review.googlesource.com/c/net/+/761640"},{"type":"REPORT","url":"https://github.com/golang/go/issues/78476"},{"type":"REPORT","url":"https://go.dev/cl/761581"},{"type":"REPORT","url":"https://go.dev/cl/761640"},{"type":"REPORT","url":"https://go.dev/issue/78476"},{"type":"REPORT","url":"https://groups.google.com/g/golang-announce/c/qcCIEXso47M"},{"type":"REPORT","url":"https://pkg.go.dev/vuln/GO-2026-4918"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8430-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8471-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8472-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8473-1"}],"affected":[{"package":{"name":"golang-golang-x-net-dev","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/golang-golang-x-net-dev?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0+git20150226.3d87fd6-3","0.0+git20151007.b846920+dfsg-1","1:0.0+git20150817.66f0418-1","1:0.0+git20160110.4fd4a9f-1","1:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm1","1:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm2","binary_name":"golang-go.net-dev"},{"binary_version":"1:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm2","binary_name":"golang-golang-x-net-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33814.json"}},{"package":{"name":"juju-core","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/juju-core?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.24.6-0ubuntu3","1.25.0-0ubuntu1","1.25.0-0ubuntu2","1.25.0-0ubuntu3","2.0~beta4-0ubuntu2","2.0~beta6-0ubuntu1.16.04.1","2.0~beta7-0ubuntu1.16.04.1","2.0~beta12-0ubuntu1.16.04.1","2.0~beta15-0ubuntu2.16.04.1","2.0.0-0ubuntu0.16.04.2","2.0.2-0ubuntu0.16.04.1","2.0.2-0ubuntu0.16.04.2","2.3.1-0ubuntu0.16.04.1","2.3.2-0ubuntu0.16.04.1","2.3.7-0ubuntu0.16.04.1","2.3.7-0ubuntu0.16.04.1+esm1","2.3.7-0ubuntu0.16.04.1+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.7-0ubuntu0.16.04.1+esm2","binary_name":"juju"},{"binary_version":"2.3.7-0ubuntu0.16.04.1+esm2","binary_name":"juju-2.0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33814.json"}},{"package":{"name":"lxd","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/lxd?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.20-0ubuntu4","0.21-0ubuntu3","0.21-0ubuntu5","0.22-0ubuntu1","0.22-0ubuntu2","0.23-0ubuntu1","0.23-0ubuntu2","0.23-0ubuntu3","0.24-0ubuntu2","0.24-0ubuntu3","0.24-0ubuntu4","0.25-0ubuntu1","0.26-0ubuntu2","0.26-0ubuntu3","0.27-0ubuntu1","0.27-0ubuntu2","2.0.0~beta1-0ubuntu3","2.0.0~beta1-0ubuntu4","2.0.0~beta2-0ubuntu1","2.0.0~beta2-0ubuntu2","2.0.0~beta3-0ubuntu1","2.0.0~beta3-0ubuntu2","2.0.0~beta3-0ubuntu3","2.0.0~beta3-0ubuntu4","2.0.0~beta4-0ubuntu1","2.0.0~beta4-0ubuntu2","2.0.0~beta4-0ubuntu3","2.0.0~beta4-0ubuntu4","2.0.0~beta4-0ubuntu5","2.0.0~beta4-0ubuntu6","2.0.0~beta4-0ubuntu7","2.0.0~rc1-0ubuntu1","2.0.0~rc1-0ubuntu2","2.0.0~rc1-0ubuntu3","2.0.0~rc2-0ubuntu2","2.0.0~rc2-0ubuntu3","2.0.0~rc3-0ubuntu1","2.0.0~rc3-0ubuntu2","2.0.0~rc3-0ubuntu3","2.0.0~rc3-0ubuntu4","2.0.0~rc4-0ubuntu1","2.0.0~rc5-0ubuntu1","2.0.0~rc6-0ubuntu1","2.0.0~rc6-0ubuntu2","2.0.0~rc7-0ubuntu1","2.0.0~rc7-0ubuntu2","2.0.0~rc8-0ubuntu1","2.0.0~rc8-0ubuntu2","2.0.0~rc8-0ubuntu3","2.0.0~rc8-0ubuntu5","2.0.0~rc8-0ubuntu6","2.0.0~rc8-0ubuntu7","2.0.0~rc9-0ubuntu2","2.0.0~rc9-0ubuntu3","2.0.0~rc9-0ubuntu4","2.0.0~rc9-0ubuntu5","2.0.0-0ubuntu1","2.0.0-0ubuntu2","2.0.0-0ubuntu3","2.0.0-0ubuntu4","2.0.1-0ubuntu1~16.04.1","2.0.2-0ubuntu1~16.04.1","2.0.3-0ubuntu1~ubuntu16.04.2","2.0.4-0ubuntu1~ubuntu16.04.1","2.0.5-0ubuntu1~ubuntu16.04.1","2.0.8-0ubuntu1~ubuntu16.04.1","2.0.8-0ubuntu1~ubuntu16.04.2","2.0.9-0ubuntu1~16.04.1","2.0.9-0ubuntu1~16.04.2","2.0.10-0ubuntu1~16.04.1","2.0.10-0ubuntu1~16.04.2","2.0.11-0ubuntu1~16.04.2","2.0.11-0ubuntu1~16.04.4","2.0.11-0ubuntu1~16.04.4+esm1","2.0.11-0ubuntu1~16.04.4+esm2","2.0.11-0ubuntu1~16.04.4+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.11-0ubuntu1~16.04.4+esm3","binary_name":"golang-github-lxc-lxd-dev"},{"binary_name":"lxc2","binary_version":"2.0.11-0ubuntu1~16.04.4+esm3"},{"bi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