{"answers":{"affected":"4 open source packages ship an affected version, including github.com/lxc/incus/v6 and github.com/lxc/incus. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-33945 in the wild and no public exploit code.","fix":"Upgrade github.com/lxc/incus/v6 to 6.23.0 or later.","what":"CVE-2026-33945 is a critical path traversal 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-2026-33945 and fix it if it is affected.\n\nWhat it is: CVE-2026-33945 is a critical path traversal 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: There is no known exploitation of CVE-2026-33945 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\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- github.com/lxc/incus (Go): affected all versions; no fix listed\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-2026-33945/ (Markdown: https://insights.sbomify.com/CVE-2026-33945/index.md)","id":"CVE-2026-33945","markdown":"https://insights.sbomify.com/CVE-2026-33945/index.md","name":"CVE-2026-33945","record":{"aliases":["DEBIAN-CVE-2026-33945","GHSA-q4q8-7f2j-9h9f","GO-2026-4884","UBUNTU-CVE-2026-33945"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Incus container manager","requires_auth":"low_privilege","summary":"Attackers can write arbitrary files as root via path traversal in systemd credential configuration, leading to privilege escalation or denial of service.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"incus","vendor":"linuxcontainers"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an attacker can set a configuration key named something like `systemd.credential.../../../../../../root/.bashrc` to cause Incus to write outside of the `credentials` directory associated with the container. This makes use of the fact that the Incus syntax for such credentials is `systemd.credential.XYZ` where `XYZ` can itself contain more periods. While it's not possible to read any data this way, it's possible to write to arbitrary files as root, enabling both privilege escalation and denial of service attacks. 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":"none_known"},"has_fix":true,"headline":"Abitrary file write through systemd-creds option","id":"CVE-2026-33945","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"MCP Ruby SDK: Insufficient Session Binding Allows SSE Stream Hijacking via Session ID Replay","id":"CVE-2026-33946"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus","purl":"pkg:golang/github.com/lxc/incus","source":"GO-2026-4884"},{"ecosystem":"Go","fixed":["6.23.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6","purl":null,"source":"GHSA-q4q8-7f2j-9h9f"},{"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-q4q8-7f2j-9h9f"},{"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-2026-4884"}],"prev":{"headline":"Happy DOM ECMAScriptModuleCompiler: unsanitized export names are interpolated as executable code","id":"CVE-2026-33943"},"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":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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-03-27","vendors":["lxc"]},"summary":"Attackers can write arbitrary files as root via path traversal in systemd credential configuration, leading to privilege escalation or denial of service.","url":"https://insights.sbomify.com/CVE-2026-33945/"}