{"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-2026-53495 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-2026-53495 is a medium-severity denial of service vulnerability in containerd, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-53495 and fix it if it is affected.\n\nWhat it is: CVE-2026-53495 is a medium-severity denial of service vulnerability in containerd, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-53495 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-2026-53495/ (Markdown: https://insights.sbomify.com/CVE-2026-53495/index.md)","id":"CVE-2026-53495","markdown":"https://insights.sbomify.com/CVE-2026-53495/index.md","name":"CVE-2026-53495","record":{"aliases":["AZL-100986","AZL-101004","BELL-CVE-2026-53495","CLEANSTART-2026-HA58928","CLEANSTART-2026-MU77923","CLEANSTART-2026-NV54343","DEBIAN-CVE-2026-53495","ECHO-3260-32c0-5c56","GHSA-7jxh-36q5-gcqv","GO-2026-6444","MINI-22fq-73fm-v5jc","MINI-22rq-qm99-qrpm","MINI-28c2-w988-86v3","MINI-28jx-g82p-f4xh","MINI-29cq-r244-2j24","MINI-2c58-q9h6-r4ww","MINI-2g5p-3cg4-6rcm","MINI-2p36-4rh2-xrh3","MINI-2pq7-fjmc-9xjx","MINI-2q3j-45jj-74fg","MINI-2r3q-3xm7-722q","MINI-2rc4-6w87-996w","MINI-2wr2-3r26-v768","MINI-324q-hhqj-54f7","MINI-329r-2qh8-vpcp","MINI-3362-5f8h-mxf6","MINI-33cg-9g7w-gv25","MINI-33gv-cm74-25f6","MINI-35g8-3wgp-g9j9","MINI-37wc-6fq7-vwpf","MINI-38pw-mf72-6jfr","MINI-39hc-8rpq-m7hw","MINI-39mr-9h6w-qrqq","MINI-39rw-wcf2-q2mp","MINI-3jmr-q35q-xpq6","MINI-3pwh-w8r9-hc9c","MINI-3q2h-97qw-7gfj","MINI-3r3h-c5q9-67cw","MINI-42cv-qfvf-r453","MINI-42pf-87m6-3h2f","MINI-4478-wpq7-qhx2","MINI-46wq-gjw2-2w24","MINI-48xw-6p3q-784m","MINI-4jhv-5r48-px8j","MINI-4p3f-vvrf-8wxj","MINI-4ph2-r9j5-2f78","MINI-4q8c-896f-jvqg","MINI-4r7m-m9p4-rpf2","MINI-4rr7-v372-8p45","MINI-4w4h-mg98-mmqc","MINI-5236-78c5-75qq","MINI-52gg-7xr7-j2h9","MINI-5389-g89q-365m","MINI-555q-2g25-g2cx","MINI-5587-c4gf-vwxp","MINI-574x-j3qh-hg5f","MINI-5763-rj88-g9r9","MINI-596h-v8hh-fqph","MINI-5j7p-c2vr-q9p9","MINI-5jgr-rpmw-9w87","MINI-5m9j-3wff-ppcr","MINI-5mvw-95w7-6c88","MINI-5pgg-ghpm-37hv","MINI-5q35-8f3m-rccx","MINI-5qxw-hm8w-27mg","MINI-5wcm-3c96-rfwg","MINI-6275-7rm3-577w","MINI-62r2-fw3j-x8p7","MINI-6433-pvq4-696v","MINI-6567-r29h-65g6","MINI-66fc-7ph6-4799","MINI-6h3f-c2j6-4rw2","MINI-6h3q-55rh-vxj7","MINI-6hvp-fw2c-4hfc","MINI-6hxv-j53p-5pr4","MINI-6j7q-493f-g9rq","MINI-6jch-933r-qc6j","MINI-6mrr-x9q3-q2pp","MINI-6p47-52gh-h3x6","MINI-6p9m-jmwx-3c78","MINI-6pjr-q2rm-766r","MINI-6rhw-qwvp-xm7j","MINI-6rj8-pjjg-g483","MINI-6wcc-q62g-4ww6","MINI-7247-7fhq-xc9h","MINI-726r-qpvq-gx7j","MINI-7344-6mmw-2wjp","MINI-73cm-x578-5p9f","MINI-73r6-jfxh-w8j5","MINI-78h3-m6mw-h4pv","MINI-7999-vfcf-4gxw","MINI-7c59-hp7v-699g","MINI-7fqj-9q7c-r85w","MINI-7fqj-pgwx-gjx9","MINI-7jxm-cfv5-qvmp","MINI-7mrg-mxgw-mgfj","MINI-7q27-4r8j-gv6h","MINI-7q9c-jqcv-c5wq","MINI-7qj2-6746-vrqv","MINI-7qrr-8mjr-93x7","MINI-7r4m-q5ff-jchm","MINI-8396-q77v-795j","MINI-83rm-hp4r-3whj","MINI-84rf-chmj-v8qq","MINI-88pq-2cgh-mm79","MINI-895j-wv38-r86w","MINI-8c49-jq65-5373","MINI-8gmr-32pg-rg5c","MINI-8gwp-gwgc-38j3","MINI-8mc4-vh5x-m73c","MINI-8pcm-h4w6-r8pm","MINI-8qf3-gphr-9wg3","MINI-8w8m-3h85-9ghx","MINI-938w-6m62-gjcv","MINI-93fh-xmf2-wcj8","MINI-93v6-rf2p-rhj7","MINI-95xq-xjpj-2h42","MINI-9ghx-p25w-8qrw","MINI-9r8r-3898-88pc","MINI-9rg5-r6fx-9pmw","MINI-9v7q-vfw2-ff42","MINI-9w9g-p6vv-gmm8","MINI-c25p-233f-q972","MINI-c2mq-qmj7-4843","MINI-c39r-c9mc-qv9q","MINI-c48g-f6v9-f8gh","MINI-c49x-3p5x-xfpf","MINI-c5x4-7958-98rh","MINI-c6pp-gp5w-6jvg","MINI-c74v-x478-w8v6","MINI-c98m-v47v-3xf2","MINI-cccv-2mqr-56xr","MINI-ccqc-2qrc-gg29","MINI-chcc-pj9v-fgrw","MINI-chwf-vj6g-q49r","MINI-cjvc-vfjc-phx8","MINI-cr67-xcfr-5crv","MINI-crrx-j5cj-c25r","MINI-cvgw-xm3r-6rpg","MINI-cvmq-4jf5-m2rm","MINI-cvwx-cgpp-7pgc","MINI-cwfq-h7q2-pg9r","MINI-cx34-rv9w-jx7j","MINI-f26f-8qr8-xc55","MINI-f5v7-7rgp-wm4q","MINI-f78h-94hc-h2vh","MINI-f874-4j2v-mj6f","MINI-f97c-25pr-h85f","MINI-fccr-5h9p-r4h9","MINI-ff4r-wf5j-jqqf","MINI-ffmg-rwm9-qjhq","MINI-fghr-8xq3-56hj","MINI-fgqv-p534-h86w","MINI-fgqx-2694-96rh","MINI-fm29-642f-g4vj","MINI-fp2j-j96x-3mq6","MINI-fp9g-9fh3-fp6v","MINI-fq58-vhqj-hhwj","MINI-fq76-39hh-996f","MINI-fq8g-c5w3-pq82","MINI-fqhx-x6pq-rxqm","MINI-fvjv-63xm-g45h","MINI-fwfm-x9p6-wgfg","MINI-g45x-q5f9-7gx9","MINI-g52q-6jqr-hfj4","MINI-g6wg-2pvp-v274","MINI-g74m-r3r3-6h4j","MINI-g8qf-xwfj-94m3","MINI-g968-rfcg-3hgx","MINI-gfj2-v3jq-vg2g","MINI-ghpw-324p-w6qr","MINI-gjvr-2phw-gf7j","MINI-gjxv-9fmr-rv62","MINI-gmrf-crhw-9v7m","MINI-gpc8-v8gr-4495","MINI-gq2c-575v-v9qw","MINI-gx45-ppw6-39vc","MINI-h498-rhmq-399x","MINI-h66r-wxg7-w28j","MINI-h7rf-6qh3-h633","MINI-h7v7-7pvw-gpmh","MINI-hh98-vx6c-vj44","MINI-hhrg-f64p-phh4","MINI-hjfw-ghpx-qqhp","MINI-hpgq-jf3v-j25w","MINI-hpr4-rpwx-ppv2","MINI-hvpj-45r7-8xmx","MINI-hw3c-7pmx-pgh3","MINI-j2xr-9996-5qg3","MINI-j543-6f4g-rj95","MINI-j582-6ggp-7w9v","MINI-j8c9-q7q4-fjh6","MINI-jmmh-pvjc-8397","MINI-jqc2-3r3r-mq6j","MINI-jvv7-jccx-575x","MINI-jx48-5f76-pw5v","MINI-jx59-5x2m-hq2w","MINI-m554-2xfp-42cm","MINI-m58q-xmxx-3jmw","MINI-m6h4-qjmh-xp5q","MINI-m6px-79c7-mj3w","MINI-m7mf-8hq9-8whc","MINI-mc43-p6rr-xgxf","MINI-mcr5-fr2p-r2jg","MINI-mfm7-4p6h-fw2x","MINI-mjwg-fjvr-gx9j","MINI-mmjp-3pj5-7922","MINI-mr24-q5j3-64mq","MINI-mvgj-ph8m-993q","MINI-p23x-gxg5-fhj7","MINI-p2r2-mx26-j5vh","MINI-p372-pg87-898p","MINI-p72v-72f6-2m9x","MINI-p7vm-8g37-9mxv","MINI-pcw4-mc9p-h758","MINI-pfpm-h9xv-hv2w","MINI-ph89-m8hq-c7v2","MINI-pj47-9mxf-gq85","MINI-pmpg-jf6q-h78v","MINI-pp8h-w366-828w","MINI-pqgf-3j33-rj4c","MINI-prcc-vhf5-prfr","MINI-prjc-xv98-hg8c","MINI-pv4x-5v5p-fh7f","MINI-pwjc-432c-7v6g","MINI-pxv4-h22q-rc3q","MINI-q267-jgr3-rmx7","MINI-q2gm-535x-w3hc","MINI-q2h8-65qv-x7g4","MINI-q4jm-qp2w-3w9w","MINI-q4q8-6vh6-pmcx","MINI-q5pj-6rj9-xpjj","MINI-q8q3-59j2-8c5g","MINI-q965-v5hr-5vp7","MINI-q99f-p9p7-c6f2","MINI-q9x4-388p-4h25","MINI-qg4h-3v5w-hf2w","MINI-qg6x-rxph-76m2","MINI-qgg4-3cfw-6x7h","MINI-qggx-xx3r-8hxh","MINI-qhwc-grg9-g2g6","MINI-qm35-wvc2-385j","MINI-qm58-cxfp-wr9v","MINI-qpm7-x89c-rx67","MINI-qw8w-hxx3-2mfj","MINI-r27w-cvgm-pf37","MINI-r3cj-pg8v-x3cc","MINI-r4qq-hwxx-26wv","MINI-r4wc-jp22-gpj9","MINI-r626-35mg-q6mp","MINI-r76m-hxmm-hc3f","MINI-r9qr-pp58-cw2j","MINI-rcv7-hhgj-xxh8","MINI-rh6v-cwgj-2ccf","MINI-rh8f-84xp-276v","MINI-rh9g-373f-848q","MINI-rjp3-ff2x-ghj5","MINI-rmh4-9f95-33m6","MINI-rp52-p8vp-hc44","MINI-rp76-86mp-8hqj","MINI-rpjx-wfq2-mpv4","MINI-rq87-h5w3-r9h3","MINI-rw6q-3wp4-q6w3","MINI-rxwq-88jx-f4g9","MINI-v322-65wc-cq4h","MINI-v49r-2p8r-74pg","MINI-v4xh-cmhm-fv97","MINI-v677-v9jh-xp8w","MINI-v92c-f62q-24c3","MINI-v9jq-96vw-w7mr","MINI-v9vq-p98g-35h4","MINI-vh27-cqq8-7rvw","MINI-vj6j-wpj4-9p88","MINI-vm4p-v5c7-c45r","MINI-vr77-xqq6-hgp5","MINI-vrf8-2vjc-9gp2","MINI-vv63-xjr6-j66x","MINI-vwfp-c338-7j8h","MINI-vx49-7x29-7756","MINI-w4q6-jcrh-7232","MINI-w4xm-2fmc-r9xv","MINI-w5mq-p7x2-24mx","MINI-w689-4766-w5vx","MINI-w779-295p-cvq2","MINI-w82q-qc9x-fq46","MINI-wh7x-7r4m-m7qc","MINI-wh98-vjjf-4r5q","MINI-wp74-9ppx-h82h","MINI-wpvj-ppc7-87vv","MINI-wqr5-3grq-288x","MINI-wwc2-9jqm-5m47","MINI-wwh9-73xc-qhw2","MINI-wxmp-p988-6fpw","MINI-wxv6-qf2v-v3v7","MINI-wxw5-ff39-c55h","MINI-x29r-934x-h3wx","MINI-x5q7-694j-hmx8","MINI-x6f5-24xc-76p4","MINI-x9g7-m3fx-q9c3","MINI-xc8h-265h-fmq9","MINI-xhp9-qf5p-mxhr","MINI-xj28-735h-9m8h","MINI-xrcp-c4jc-27c7","MINI-xrv5-29p4-jc48","MINI-xw5x-p852-cf6w","MINI-xxx7-m35w-ggm4","UBUNTU-CVE-2026-53495","openSUSE-SU-2026:11766-1","openSUSE-SU-2026:11977-1"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"container runtime","requires_auth":"low_privilege","summary":"Attackers can cause node-level denial of service in containerd by triggering goroutine leaks via CRI ExecSync, requiring an upgrade to fixed versions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"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 on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/container_execsync.go when CRI ExecSync is used by exec probes or lifecycle hooks that launch long-lived background child processes retaining standard input and output pipes. The input and output drain phase has no default timeout and did not stop when the request context was canceled, so repeated ExecSync invocations can accumulate blocked goroutines and host memory. The resulting resource exhaustion can cause the OOM killer to terminate containerd, leaving the container runtime unavailable until restart. Deployments not using containerd's CRI implementation and containers not running on Linux are not affected. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5.","ecosystems":["Go","openSUSE:Tumbleweed"],"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 CRI ExecSync Goroutine Leak Leading to Node-Level Denial of Service","id":"CVE-2026-53495","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":12,"n_references":9,"next":{"headline":"ExifReader HEIC/AVIF ISO-BMFF parser throws uncaught RangeError on truncated boxes","id":"CVE-2026-53496"},"packages":[{"ecosystem":"Go","fixed":["1.7.35"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd","purl":null,"source":"GHSA-7jxh-36q5-gcqv"},{"ecosystem":"Go","fixed":["1.7.35"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd","purl":"pkg:golang/github.com/containerd/containerd","source":"GHSA-7jxh-36q5-gcqv"},{"ecosystem":"Go","fixed":["1.7.35"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd","purl":"pkg:golang/github.com/containerd/containerd","source":"GO-2026-6444"},{"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-2026-6444"},{"ecosystem":"Go","fixed":["2.0.12"],"introduced":["0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":null,"source":"GHSA-7jxh-36q5-gcqv"},{"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-7jxh-36q5-gcqv"},{"ecosystem":"Go","fixed":["2.2.8"],"introduced":["2.2.0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":null,"source":"GHSA-7jxh-36q5-gcqv"},{"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-7jxh-36q5-gcqv"},{"ecosystem":"Go","fixed":["2.3.5"],"introduced":["2.3.0"],"last_affected":[],"package":"github.com/containerd/containerd/v2","purl":null,"source":"GHSA-7jxh-36q5-gcqv"},{"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-7jxh-36q5-gcqv"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["2.1.0-4.1"],"introduced":["0"],"last_affected":[],"package":"hauler","purl":"pkg:rpm/opensuse/hauler\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11766-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["0.75.0-1.1"],"introduced":["0"],"last_affected":[],"package":"trivy","purl":"pkg:rpm/opensuse/trivy\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11977-1"}],"prev":{"headline":"Containerd has image-pull DoS via crafted OCI index graph amplification","id":"CVE-2026-53493"},"products":["containerd"],"published":"2026-09-14","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":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"2026-09-14","vendors":["containerd"]},"summary":"Attackers can cause node-level denial of service in containerd by triggering goroutine leaks via CRI ExecSync, requiring an upgrade to fixed versions.","url":"https://insights.sbomify.com/CVE-2026-53495/"}