{"answers":{"affected":"10 open source packages ship an affected version, including github.com/containerd/containerd/v2 and github.com/containerd/containerd.","exploited":"There is no known exploitation of CVE-2026-95838 in the wild and no public exploit code.","fix":"Upgrade github.com/containerd/containerd/v2 to a fixed version for your release line: 2.0.12, 2.2.8 or 2.3.5.","what":"CVE-2026-95838 is a medium-severity denial of service vulnerability in containerd, published on 12 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-95838 and fix it if it is affected.\n\nWhat it is: CVE-2026-95838 is a medium-severity denial of service vulnerability in containerd, published on 12 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-95838 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/containerd/containerd/v2 (Go): affected all versions; fixed in 2.0.12, 2.2.8, 2.3.5\n- github.com/containerd/containerd/v2 (Go): affected all versions; fixed in 2.0.12\n- github.com/containerd/containerd/v2 (Go): affected all versions; fixed in 2.0.12\n- github.com/containerd/containerd/v2 (Go): affected from 2.2.0; fixed in 2.2.8\n- github.com/containerd/containerd/v2 (Go): affected from 2.2.0; fixed in 2.2.8\n- github.com/containerd/containerd/v2 (Go): affected from 2.3.0; fixed in 2.3.5\n- github.com/containerd/containerd/v2 (Go): affected from 2.3.0; fixed in 2.3.5\n- github.com/containerd/containerd (Go): affected all versions; fixed in 1.7.35\n- github.com/containerd/containerd (Go): affected all versions; fixed in 1.7.35\n- github.com/containerd/containerd (Go): affected all versions; fixed in 1.7.35\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-95838/ (Markdown: https://insights.sbomify.com/CVE-2026-95838/index.md)","id":"CVE-2026-95838","markdown":"https://insights.sbomify.com/CVE-2026-95838/index.md","name":"CVE-2026-95838","record":{"aliases":["AZL-108008","AZL-108053","AZL-108068","AZL-108072","AZL-108075","AZL-108078","BELL-CVE-2026-95838","CLEANSTART-2026-GW76003","DEBIAN-CVE-2026-95838","ECHO-b763-21be-87b8","GHSA-rp3h-jf77-q9p4","GO-2026-6796","MINI-23jh-vvqc-jpgm","MINI-24xg-4pj8-jrm7","MINI-25x9-rc3j-r945","MINI-26g5-6j7c-pj6m","MINI-28v3-fxxm-7hr6","MINI-28x9-pj44-7v9m","MINI-2936-9j89-2x3x","MINI-2cgj-j37c-x4jx","MINI-2g53-2c2m-x94h","MINI-2g7v-4c52-mv53","MINI-2g8q-prww-9879","MINI-2h22-xph6-8hr8","MINI-2h6p-hm6c-wphj","MINI-2rqr-wp57-37w8","MINI-3285-fq5m-rc86","MINI-32c6-72cg-rffg","MINI-334j-6v5f-94rg","MINI-34g5-xhh4-4hvc","MINI-3648-fmgm-jhwv","MINI-37hh-c6vx-x9p4","MINI-389q-238q-8qrc","MINI-38g6-39vm-r62v","MINI-39qp-f2x7-9mcq","MINI-3g9f-7v6f-cvcf","MINI-3grh-wj35-gr74","MINI-3hg9-g7pp-6f3m","MINI-3hj8-x8mq-g92r","MINI-3j4w-vpwm-jc72","MINI-3mmr-rjmv-rmj5","MINI-3rj3-4fjw-pwf4","MINI-3v7q-7pch-p6fx","MINI-3xpj-qwr3-4467","MINI-429m-jcvv-c8x7","MINI-42qc-m6qj-pr46","MINI-43cm-j9jg-pc6v","MINI-44jg-jp52-qvr3","MINI-457j-gc66-qqvc","MINI-45v4-63jg-fg35","MINI-467h-cr43-c93r","MINI-48r2-wqgg-xpxh","MINI-49r4-2w4r-p2rr","MINI-49rw-rcmp-r2rw","MINI-4g4x-5qvc-rc47","MINI-4jhr-37x3-x65g","MINI-4rj6-p9fx-rxr3","MINI-4v55-9vhv-cxxr","MINI-52gm-rcqr-h5xc","MINI-52q4-487m-645x","MINI-564f-8cv3-rj7p","MINI-5677-6748-pxqf","MINI-57r8-r4rv-6jmf","MINI-5f8f-399q-rh59","MINI-5fr7-jmgg-698m","MINI-5fxq-fw5r-gwqq","MINI-5mpx-79q3-wc98","MINI-5p2q-xcrp-546q","MINI-5rx9-33cr-6v42","MINI-5v2v-vw4w-rfww","MINI-5w3m-hcrv-pv9h","MINI-637x-h2cg-h3q7","MINI-63j2-2j6r-ppgq","MINI-645w-j8wj-m3c7","MINI-64c5-44p6-hf3v","MINI-6669-5pg8-43rv","MINI-68gw-rjh2-7466","MINI-69mh-5j2v-hhfc","MINI-6fm7-98gj-8vqq","MINI-6hqh-wqqj-j7jr","MINI-6q6q-63wx-674c","MINI-6qmg-8vjj-rmpf","MINI-6x4j-v26m-hpcg","MINI-7362-57wp-g5qr","MINI-73qh-vhx7-gh8c","MINI-74rv-7q56-fv65","MINI-755j-7w3w-5hfr","MINI-75v7-gw42-p65h","MINI-774p-5v55-697v","MINI-77fj-wx64-9996","MINI-78v5-f97w-5ph8","MINI-7939-p94m-79fm","MINI-79wh-qw97-574r","MINI-7ccm-q272-6m5g","MINI-7cgm-32vw-hmgc","MINI-7fmf-x78w-3h73","MINI-7mgr-5vjj-w649","MINI-7qqw-hv8r-5hff","MINI-7rcg-4g5p-whg3","MINI-7wr4-h9fc-57hv","MINI-829j-rvgf-mjhm","MINI-83w5-p299-j73h","MINI-89h9-96cq-v5r3","MINI-89wr-xwrc-j67q","MINI-8f54-qxgp-fjmc","MINI-8fg3-9g3c-7mrf","MINI-8gvw-2x74-v83w","MINI-8j4w-226f-mvqc","MINI-8jmw-jrvw-xh42","MINI-8pmf-269h-6f93","MINI-8ppx-2ppj-q3xj","MINI-8xcc-f39h-7pc8","MINI-8xpq-f9f4-fx74","MINI-9235-7pp3-pr59","MINI-92jh-37j9-gmp8","MINI-9479-433c-x249","MINI-952v-35hj-6p8v","MINI-95jg-v5c6-f6xx","MINI-965m-fx6q-28pv","MINI-96cc-2g67-vv42","MINI-97g6-867c-mcqf","MINI-9ccj-v26w-7p68","MINI-9fm8-v37p-f649","MINI-9ggq-8gw7-jwmr","MINI-9gxr-gffr-wrpc","MINI-9h4q-fj63-xw47","MINI-9jhh-p834-r3hw","MINI-9m8j-j63x-g3f7","MINI-9mgg-jhrw-4c96","MINI-9p6f-5645-553p","MINI-9qq8-9hwj-pqvc","MINI-9vp9-7j3p-7q46","MINI-9vv9-cw42-xhrq","MINI-9x9q-xcqr-5gwc","MINI-c62f-wj8h-hc3x","MINI-c6qf-gx87-gg6c","MINI-c77c-f389-h5hq","MINI-c9m7-6vf6-5rx4","MINI-chcw-qx96-qff7","MINI-cm8x-c932-6344","MINI-cp5x-rfx5-44hh","MINI-cpjj-w42x-6g55","MINI-cprh-4h78-xh43","MINI-cprm-54qm-6422","MINI-cv39-4jfj-8m3x","MINI-f2wx-qjhc-484f","MINI-f349-hj2q-5p4v","MINI-f3hm-pvhc-mc5p","MINI-f6mh-gf95-rrw3","MINI-f7q8-m58r-mvm3","MINI-f8qr-w47v-797p","MINI-ffhm-629c-9mm6","MINI-fg6p-569m-wxgh","MINI-fgmf-6w2f-c3jh","MINI-fj35-m89m-h9jc","MINI-fj73-rcqg-cmr6","MINI-fjhx-6rv9-w8ww","MINI-fr73-xqr7-7h2v","MINI-fx53-w3p5-v8m8","MINI-g2rv-m6f3-f67m","MINI-g38q-34pc-942h","MINI-g3r5-gg6m-9w7j","MINI-g558-ch75-f3jg","MINI-g79j-vq79-68m8","MINI-g87h-g5qf-738g","MINI-g923-j7pc-77hm","MINI-g989-m89f-644q","MINI-gfvq-67x4-mpc7","MINI-gfwv-5578-69g2","MINI-gj36-w7wx-8f4p","MINI-gr56-952x-59gg","MINI-gr7r-6gmf-5j2g","MINI-gw2h-qfxg-mcvv","MINI-h373-fmh8-p5wf","MINI-h8jw-pghr-9rf4","MINI-h8q8-845v-wqfc","MINI-hf72-wxcx-fr43","MINI-hfwf-2p2c-76w5","MINI-hjfw-r2vp-q3f9","MINI-hmff-8224-xjg8","MINI-hppr-h32q-8h2h","MINI-hvxp-jpp6-6qqf","MINI-hwqj-3278-jm58","MINI-hx2j-cjc6-p77j","MINI-hx2v-wj47-q7vc","MINI-j5jg-gg5j-2685","MINI-j9pf-wc4h-fgf4","MINI-jf5r-r327-gqvj","MINI-jg4q-9j54-5q6p","MINI-jh23-xhj9-f7m5","MINI-jh75-v9jv-hxcc","MINI-jm8f-wxvc-xxrj","MINI-jmfj-qp93-73f3","MINI-jmmq-4p92-4x5w","MINI-jqhx-hc85-q94j","MINI-jvm7-xv2f-x79r","MINI-m23w-mq23-qrjx","MINI-m584-h9vh-v6pr","MINI-m98w-5cxm-q632","MINI-m9mw-65j2-5w39","MINI-m9px-jgxg-rmqv","MINI-mc4v-244p-rp68","MINI-mcjf-3qjg-9x2q","MINI-mcx6-g98w-hcgh","MINI-mf57-ggqm-49f3","MINI-mgfh-2v73-jp56","MINI-mjvm-49xj-x5x3","MINI-mmqj-8vp6-ww8m","MINI-mp45-wf78-cc6h","MINI-mqjg-653m-wj5x","MINI-mrg7-rxqr-v2gp","MINI-mv4q-xp2q-g933","MINI-mw8g-9w4c-qfp3","MINI-mw93-qw47-2f9f","MINI-mwg3-gqv4-82f6","MINI-p36c-8h5v-hjfv","MINI-p3g5-c7g7-23fw","MINI-p3vp-xh7q-5fg5","MINI-p3xc-58hp-r58h","MINI-p4jp-vvvc-w74q","MINI-p564-g4q2-62rm","MINI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runtime","requires_auth":"none","summary":"A malicious image layer can cause excessive CPU consumption and delayed startup in containerd by triggering repeated directory traversals during unpacking.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-407","name":"Inefficient Algorithmic Complexity"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd's layer unpack handler repeatedly traverses directories for certain opaque whiteout configurations. A malicious image layer can trigger repeated directory traversals while opaque whiteouts are processed. Pulling or importing the image can consume CPU, delay container startup, and reduce image-pull concurrency for unrelated deployments. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"containerd: Unpack DoS via repeated opaque whiteouts","id":"CVE-2026-95838","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":10,"n_references":2,"next":{"headline":"Moquette uncaught MQTT command exceptions can terminate shared session event loops","id":"CVE-2026-95842"},"packages":[{"ecosystem":"Go","fixed":["1.7.35"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd","purl":null,"source":"GHSA-rp3h-jf77-q9p4"},{"ecosystem":"Go","fixed":["1.7.35"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd","purl":"pkg:golang/github.com/containerd/containerd","source":"GHSA-rp3h-jf77-q9p4"},{"ecosystem":"Go","fixed":["1.7.35"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd","purl":"pkg:golang/github.com/containerd/containerd","source":"GO-2026-6796"},{"ecosystem":"Go","fixed":["2.0.12","2.2.8","2.3.5"],"introduced":["0","2.2.0","2.3.0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":"pkg:golang/github.com/containerd/containerd/v2","source":"GO-2026-6796"},{"ecosystem":"Go","fixed":["2.0.12"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":null,"source":"GHSA-rp3h-jf77-q9p4"},{"ecosystem":"Go","fixed":["2.0.12"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":"pkg:golang/github.com/containerd/containerd/v2","source":"GHSA-rp3h-jf77-q9p4"},{"ecosystem":"Go","fixed":["2.2.8"],"introduced":["2.2.0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":null,"source":"GHSA-rp3h-jf77-q9p4"},{"ecosystem":"Go","fixed":["2.2.8"],"introduced":["2.2.0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":"pkg:golang/github.com/containerd/containerd/v2","source":"GHSA-rp3h-jf77-q9p4"},{"ecosystem":"Go","fixed":["2.3.5"],"introduced":["2.3.0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":null,"source":"GHSA-rp3h-jf77-q9p4"},{"ecosystem":"Go","fixed":["2.3.5"],"introduced":["2.3.0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":"pkg:golang/github.com/containerd/containerd/v2","source":"GHSA-rp3h-jf77-q9p4"}],"prev":{"headline":"containerd CRI plugin: Checkpoint restore bypasses destination security context","id":"CVE-2026-95837"},"products":["containerd"],"published":"2026-10-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-13","vendors":["containerd"]},"summary":"A malicious image layer can cause excessive CPU consumption and delayed startup in containerd by triggering repeated directory traversals during unpacking.","url":"https://insights.sbomify.com/CVE-2026-95838/"}