{"answers":{"affected":"5 open source packages ship an affected version, including github.com/lxc/incus/v6/cmd/incusd, 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-2026-40195 exists.","fix":"Upgrade github.com/lxc/incus/v6/cmd/incusd to 7.0.0 or later.","what":"CVE-2026-40195 is a high-severity vulnerability in lxc incus, published on 6 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40195 and fix it if it is affected.\n\nWhat it is: CVE-2026-40195 is a high-severity vulnerability in lxc incus, published on 6 May 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-2026-40195 exists.\n\nAffected packages and fixed versions:\n- github.com/lxc/incus/v6/cmd/incusd (Go): affected all versions; fixed in 7.0.0\n- github.com/lxc/incus/v6/cmd/incusd (Go): affected all versions; fixed in 7.0.0\n- github.com/lxc/incus (Go): affected all versions; no fix listed\n- github.com/lxc/incus/v6 (Go): affected all versions; no fix listed\n- github.com/lxc/incus/v7 (Go): affected all versions; fixed in 7.0.0\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-2026-40195/ (Markdown: https://insights.sbomify.com/CVE-2026-40195/index.md)","id":"CVE-2026-40195","markdown":"https://insights.sbomify.com/CVE-2026-40195/index.md","name":"CVE-2026-40195","record":{"aliases":["DEBIAN-CVE-2026-40195","GHSA-gc7j-g665-rxr9","GO-2026-5397","UBUNTU-CVE-2026-40195"],"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 authenticated user can crash the Incus daemon by importing a storage bucket with a malformed index.yaml file, causing a denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"incus","vendor":"linuxcontainers"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/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-476","name":"NULL Pointer Dereference"}],"description":"Incus is a system container and virtual machine manager. In versions before 7.0.0, missing validation logic in the storage bucket import logic allows an authenticated user with access to the storage bucket feature to cause the Incus daemon to crash. The vulnerability is present in the backup metadata handling logic, where the daemon processes the index.yaml file from an imported archive and accesses members of the parsed backup configuration without first verifying that the configuration object was initialized. A malicious or malformed index.yaml that omits the config block causes a nil-pointer dereference during bucket import operations and terminates the daemon. Repeated use of this issue can be used to keep Incus offline, causing a denial of service. This issue is fixed in version 7.0.0.","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 nil-pointer dereference in storage bucket import allows denial of service","id":"CVE-2026-40195","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":5,"n_references":1,"next":{"headline":"HomeBox has Unauthorized API Access via Retained defaultGroup ID After Group Access Revocation","id":"CVE-2026-40196"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus","purl":"pkg:golang/github.com/lxc/incus","source":"GO-2026-5397"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6","purl":"pkg:golang/github.com/lxc/incus/v6","source":"GO-2026-5397"},{"ecosystem":"Go","fixed":["7.0.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6/cmd/incusd","purl":null,"source":"GHSA-gc7j-g665-rxr9"},{"ecosystem":"Go","fixed":["7.0.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6/cmd/incusd","purl":"pkg:golang/github.com/lxc/incus/v6/cmd/incusd","source":"GHSA-gc7j-g665-rxr9"},{"ecosystem":"Go","fixed":["7.0.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v7","purl":"pkg:golang/github.com/lxc/incus/v7","source":"GO-2026-5397"}],"prev":{"headline":"phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()","id":"CVE-2026-40194"},"products":["incus"],"published":"2026-05-06","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"}],"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":"2026-05-07","vendors":["lxc"]},"summary":"An authenticated user can crash the Incus daemon by importing a storage bucket with a malformed index.yaml file, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-40195/"}