{"answers":{"affected":"9 open source packages ship an affected version, including github.com/lxc/incus, github.com/lxc/incus/v6 and github.com/lxc/incus/v7.","exploited":"There is no known exploitation of CVE-2026-55621 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-55621 is a high-severity missing authorization vulnerability in lxc incus, published on 21 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-55621 and fix it if it is affected.\n\nWhat it is: CVE-2026-55621 is a high-severity missing authorization vulnerability in lxc incus, published on 21 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-55621 in the wild and no public exploit code.\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; no fix listed\n- github.com/lxc/incus/v6 (Go): affected all versions up to 6.23.0; no fix listed\n- github.com/lxc/incus/v6 (Go): affected all versions up to 6.23.0; no fix listed\n- github.com/lxc/incus/v7 (Go): affected all versions; fixed in 7.2.0\n- github.com/lxc/incus/v7 (Go): affected all versions; fixed in 7.2.0\n- github.com/lxc/incus/v7 (Go): affected all versions; fixed in 7.2.0\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-2026-55621/ (Markdown: https://insights.sbomify.com/CVE-2026-55621/index.md)","id":"CVE-2026-55621","markdown":"https://insights.sbomify.com/CVE-2026-55621/index.md","name":"CVE-2026-55621","record":{"aliases":["DEBIAN-CVE-2026-55621","GHSA-64f3-v33m-w89f","GO-2026-6318","UBUNTU-CVE-2026-55621"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Incus container manager","requires_auth":"low_privilege","summary":"Attackers can bypass project restrictions to copy custom volumes from unauthorized projects, potentially exposing sensitive data.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks exist for custom volume copying where an attacker knowing the name of a project that they don't have access to and the name of a custom volume in that project can copy the custom volume to a new project. This issue could allow an attacker to access secrets in custom volumes they are not authorized to access. Version 7.2.0 patches the issue.","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":"Incus has a project restriction bypass for custom volume copy across projects","id":"CVE-2026-55621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":9,"n_references":1,"next":{"headline":"Incus has a project restriction bypass in instance copy across projects","id":"CVE-2026-55622"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus","purl":"pkg:golang/github.com/lxc/incus","source":"GO-2026-6318"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.7.0"],"package":"github.com/lxc/incus","purl":null,"source":"GHSA-64f3-v33m-w89f"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.7.0"],"package":"github.com/lxc/incus","purl":"pkg:golang/github.com/lxc/incus","source":"GHSA-64f3-v33m-w89f"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6","purl":"pkg:golang/github.com/lxc/incus/v6","source":"GO-2026-6318"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["6.23.0"],"package":"github.com/lxc/incus/v6","purl":null,"source":"GHSA-64f3-v33m-w89f"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["6.23.0"],"package":"github.com/lxc/incus/v6","purl":"pkg:golang/github.com/lxc/incus/v6","source":"GHSA-64f3-v33m-w89f"},{"ecosystem":"Go","fixed":["7.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v7","purl":null,"source":"GHSA-64f3-v33m-w89f"},{"ecosystem":"Go","fixed":["7.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v7","purl":"pkg:golang/github.com/lxc/incus/v7","source":"GHSA-64f3-v33m-w89f"},{"ecosystem":"Go","fixed":["7.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v7","purl":"pkg:golang/github.com/lxc/incus/v7","source":"GO-2026-6318"}],"prev":{"headline":"eml_parser: DoS via deeply nested parens in Received headers","id":"CVE-2026-55620"},"products":["incus"],"published":"2026-08-21","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":"2026-08-21","vendors":["lxc"]},"summary":"Attackers can bypass project restrictions to copy custom volumes from unauthorized projects, potentially exposing sensitive data.","url":"https://insights.sbomify.com/CVE-2026-55621/"}