{"id":"USN-8471-1","summary":"containerd vulnerabilities","details":"It was discovered that containerd incorrectly handled HTTP/2 SETTINGS\nframes. A remote attacker could possibly use this issue to cause containerd\nto enter an infinite loop, resulting in a denial of service. This issue\nonly affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and\nUbuntu 22.04 LTS. (CVE-2026-33814)\n\nJakub Ciolek and Kyle Elliott discovered that containerd incorrectly\nhandled group parsing when creating containers from images. An attacker\ncould possibly use this issue to cause containerd to consume excessive\nmemory, resulting in a denial of service. (CVE-2026-47262)\n\nRobert Prast discovered that containerd incorrectly propagated labels\nfrom image configurations to containers. An attacker could possibly use\nthis issue to execute arbitrary code on the host. This issue only affected\nUbuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS\nand Ubuntu 26.04 LTS. (CVE-2026-53488)","modified":"2026-07-03T21:45:30.870052005Z","published":"2026-06-25T13:15:58Z","related":["UBUNTU-CVE-2026-33814","UBUNTU-CVE-2026-47262","UBUNTU-CVE-2026-53488"],"upstream":["UBUNTU-CVE-2026-33814","UBUNTU-CVE-2026-47262","UBUNTU-CVE-2026-53488"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8471-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-33814"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-47262"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53488"}],"affected":[{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-0ubuntu1~16.04.6+esm7"}]}],"versions":["0.2.1-0ubuntu4~16.04","0.2.3-0ubuntu1~16.04","0.2.5-0ubuntu1~16.04.1","1.2.6-0ubuntu1~16.04.2","1.2.6-0ubuntu1~16.04.3","1.2.6-0ubuntu1~16.04.4","1.2.6-0ubuntu1~16.04.5","1.2.6-0ubuntu1~16.04.6","1.2.6-0ubuntu1~16.04.6+esm1","1.2.6-0ubuntu1~16.04.6+esm2","1.2.6-0ubuntu1~16.04.6+esm4","1.2.6-0ubuntu1~16.04.6+esm5","1.2.6-0ubuntu1~16.04.6+esm6"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro","binaries":[{"binary_name":"containerd","binary_version":"1.2.6-0ubuntu1~16.04.6+esm7"},{"binary_name":"golang-github-docker-containerd-dev","binary_version":"1.2.6-0ubuntu1~16.04.6+esm7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8471-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-33814"},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-47262"}]}}},{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.12-0ubuntu1~18.04.1+esm4"}]}],"versions":["0.2.5-0ubuntu2","1.2.6-0ubuntu1~18.04.1","1.2.6-0ubuntu1~18.04.2","1.3.3-0ubuntu1~18.04.1","1.3.3-0ubuntu1~18.04.2","1.3.3-0ubuntu1~18.04.3","1.3.3-0ubuntu1~18.04.4","1.4.4-0ubuntu1~18.04.2","1.5.2-0ubuntu1~18.04.1","1.5.2-0ubuntu1~18.04.2","1.5.2-0ubuntu1~18.04.3","1.5.5-0ubuntu3~18.04.1","1.5.5-0ubuntu3~18.04.2","1.5.9-0ubuntu1~18.04.1","1.5.9-0ubuntu1~18.04.2","1.6.12-0ubuntu1~18.04.1","1.6.12-0ubuntu1~18.04.1+esm1","1.6.12-0ubuntu1~18.04.1+esm2","1.6.12-0ubuntu1~18.04.1+esm3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"containerd","binary_version":"1.6.12-0ubuntu1~18.04.1+esm4"},{"binary_name":"golang-github-containerd-containerd-dev","binary_version":"1.6.12-0ubuntu1~18.04.1+esm4"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-33814"},{"id":"CVE-2026-47262","severity":[{"score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-53488","severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8471-1.json"}},{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.12-0ubuntu1~20.04.8+esm2"}]}],"versions":["1.2.10-0ubuntu1","1.3.2-0ubuntu1","1.3.3-0ubuntu1","1.3.3-0ubuntu2","1.3.3-0ubuntu2.1","1.3.3-0ubuntu2.2","1.3.3-0ubuntu2.3","1.4.4-0ubuntu1~20.04.2","1.5.2-0ubuntu1~20.04.1","1.5.2-0ubuntu1~20.04.2","1.5.2-0ubuntu1~20.04.3","1.5.5-0ubuntu3~20.04.1","1.5.5-0ubuntu3~20.04.2","1.5.9-0ubuntu1~20.04.1","1.5.9-0ubuntu1~20.04.4","1.5.9-0ubuntu1~20.04.5","1.5.9-0ubuntu1~20.04.6","1.6.12-0ubuntu1~20.04.1","1.6.12-0ubuntu1~20.04.3","1.6.12-0ubuntu1~20.04.5","1.6.12-0ubuntu1~20.04.6","1.6.12-0ubuntu1~20.04.7","1.6.12-0ubuntu1~20.04.8","1.6.12-0ubuntu1~20.04.8+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-containerd-containerd-dev","binary_version":"1.6.12-0ubuntu1~20.04.8+esm2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:20.04:LTS","cves":[{"id":"CVE-2026-33814","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-47262","severity":[{"score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-53488","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8471-1.json"}},{"package":{"name":"containerd","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.12-0ubuntu1~22.04.11"}]}],"versions":["1.5.5-0ubuntu3","1.5.9-0ubuntu1","1.5.9-0ubuntu2","1.5.9-0ubuntu3","1.5.9-0ubuntu3.1","1.6.12-0ubuntu1~22.04.1","1.6.12-0ubuntu1~22.04.3","1.6.12-0ubuntu1~22.04.5","1.6.12-0ubuntu1~22.04.6","1.6.12-0ubuntu1~22.04.7","1.6.12-0ubuntu1~22.04.8","1.6.12-0ubuntu1~22.04.9","1.6.12-0ubuntu1~22.04.10"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.6.12-0ubuntu1~22.04.11","binary_name":"golang-github-containerd-containerd-dev"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-33814","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-47262"},{"id":"CVE-2026-53488","severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8471-1.json"}},{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.24~ds1-1ubuntu1.3+esm3"}]}],"versions":["1.6.20~ds1-1ubuntu2","1.6.24~ds1-1ubuntu1","1.6.24~ds1-1ubuntu1.1","1.6.24~ds1-1ubuntu1.2","1.6.24~ds1-1ubuntu1.2+esm1","1.6.24~ds1-1ubuntu1.3","1.6.24~ds1-1ubuntu1.3+esm1","1.6.24~ds1-1ubuntu1.3+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.24~ds1-1ubuntu1.3+esm3","binary_name":"golang-github-containerd-containerd-dev"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8471-1.json","cves_map":{"cves":[{"id":"CVE-2026-47262","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]},{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2026-53488"}],"ecosystem":"Ubuntu:Pro:24.04:LTS"}}},{"package":{"name":"containerd","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/containerd?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.24~ds1-10ubuntu1+esm1"}]}],"versions":["1.7.24~ds1-8ubuntu1","1.7.24~ds1-10ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-containerd-containerd-api-dev","binary_version":"1.7.24~ds1-10ubuntu1+esm1"},{"binary_name":"golang-github-containerd-containerd-dev","binary_version":"1.7.24~ds1-10ubuntu1+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-47262","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-53488","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},{"score":"high","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:26.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8471-1.json"}}],"schema_version":"1.7.5"}