{"answers":{"affected":"6 open source packages ship an affected version, including github.com/lxc/incus and github.com/lxc/incus/v6. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33743 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-33743 is a medium-severity denial of service vulnerability in lxc incus, published on 26 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-33743 and fix it if it is affected.\n\nWhat it is: CVE-2026-33743 is a medium-severity denial of service vulnerability in lxc incus, published on 26 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33743 exists.\n\nAffected packages and fixed versions:\n- github.com/lxc/incus (Go): affected all versions; no fix listed\n- github.com/lxc/incus (Go): affected all versions up to 0.7.0; no fix listed\n- github.com/lxc/incus (Go): affected all versions up to 0.7.0; no fix listed\n- github.com/lxc/incus/v6 (Go): affected all versions; fixed in 6.23.0\n- github.com/lxc/incus/v6 (Go): affected all versions; fixed in 6.23.0\n- github.com/lxc/incus/v6 (Go): affected all versions; fixed in 6.23.0\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-2026-33743/ (Markdown: https://insights.sbomify.com/CVE-2026-33743/index.md)","id":"CVE-2026-33743","markdown":"https://insights.sbomify.com/CVE-2026-33743/index.md","name":"CVE-2026-33743","record":{"aliases":["DEBIAN-CVE-2026-33743","GHSA-vg76-xmhg-j5x3","GO-2026-4886","UBUNTU-CVE-2026-33743"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Incus container manager","requires_auth":"low_privilege","summary":"An attacker with storage bucket access can crash the Incus daemon via a crafted backup file, causing control plane denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"incus","vendor":"linuxcontainers"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Incus is a system container and virtual machine manager. Prior to version 6.23.0, a specially crafted storage bucket backup can be used by an user with access to Incus' storage bucket feature to crash the Incus daemon. Repeated use of this attack can be used to keep the server offline causing a denial of service of the control plane API. This does not impact any running workload, existing containers and virtual machines will keep operating. Version 6.23.0 fixes the issue.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Incus vulnerable to denial of source through crafted bucket backup file","id":"CVE-2026-33743","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":6,"n_references":1,"next":{"headline":"BentoML has Dockerfile Command Injection via system_packages in bentofile.yaml","id":"CVE-2026-33744"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus","purl":"pkg:golang/github.com/lxc/incus","source":"GO-2026-4886"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.7.0"],"package":"github.com/lxc/incus","purl":null,"source":"GHSA-vg76-xmhg-j5x3"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.7.0"],"package":"github.com/lxc/incus","purl":"pkg:golang/github.com/lxc/incus","source":"GHSA-vg76-xmhg-j5x3"},{"ecosystem":"Go","fixed":["6.23.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6","purl":null,"source":"GHSA-vg76-xmhg-j5x3"},{"ecosystem":"Go","fixed":["6.23.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6","purl":"pkg:golang/github.com/lxc/incus/v6","source":"GHSA-vg76-xmhg-j5x3"},{"ecosystem":"Go","fixed":["6.23.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6","purl":"pkg:golang/github.com/lxc/incus/v6","source":"GO-2026-4886"}],"prev":{"headline":"Invoice Ninja has Stored XSS via Markdown HTML Injection in Product Notes","id":"CVE-2026-33742"},"products":["incus"],"published":"2026-03-26","related":[{"cvss_score":10,"headline":"Incus vulnerable to arbitrary file read and write through pongo templates","id":"CVE-2026-33897","kev_date_added":null,"published":"2026-03-26"},{"cvss_score":10,"headline":"Abitrary file write through systemd-creds option","id":"CVE-2026-33945","kev_date_added":null,"published":"2026-03-26"},{"cvss_score":8.8,"headline":"Local Incus UI web server vulnerable to nuthentication bypass","id":"CVE-2026-33898","kev_date_added":null,"published":"2026-03-26"},{"cvss_score":8.7,"headline":"Incus container environment configuration newline injection","id":"CVE-2026-23953","kev_date_added":null,"published":"2026-01-22"},{"cvss_score":8.7,"headline":"Incus container image templating arbitrary host file read and write","id":"CVE-2026-23954","kev_date_added":null,"published":"2026-01-22"},{"cvss_score":8.6,"headline":"Incus vulnerable to local privilege escalation through custom storage volumes","id":"CVE-2025-64507","kev_date_added":null,"published":"2025-11-10"},{"cvss_score":7.1,"headline":"Incus nil-pointer dereference in storage bucket import allows denial of service","id":"CVE-2026-40195","kev_date_added":null,"published":"2026-05-06"}],"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":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-27","vendors":["lxc"]},"summary":"An attacker with storage bucket access can crash the Incus daemon via a crafted backup file, causing control plane denial of service.","url":"https://insights.sbomify.com/CVE-2026-33743/"}