{"answers":{"affected":"5 open source packages ship an affected version, including github.com/lxc/incus/v7/cmd/incusd, github.com/lxc/incus and github.com/lxc/incus/v6.","exploited":"There is no known exploitation of CVE-2026-48755 in the wild and no public exploit code.","fix":"Upgrade github.com/lxc/incus/v7/cmd/incusd to 7.2.0 or later.","what":"CVE-2026-48755 is a critical command injection 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-2026-48755 and fix it if it is affected.\n\nWhat it is: CVE-2026-48755 is a critical command injection 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-2026-48755 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/lxc/incus/v7/cmd/incusd (Go): affected all versions; fixed in 7.2.0\n- github.com/lxc/incus/v7/cmd/incusd (Go): affected all versions; fixed in 7.2.0\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 7.2.0\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-2026-48755/ (Markdown: https://insights.sbomify.com/CVE-2026-48755/index.md)","id":"CVE-2026-48755","markdown":"https://insights.sbomify.com/CVE-2026-48755/index.md","name":"CVE-2026-48755","record":{"aliases":["DEBIAN-CVE-2026-48755","GHSA-v6mj-8pf4-hhw4","GO-2026-5808","UBUNTU-CVE-2026-48755"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Incus container manager","requires_auth":"low_privilege","summary":"Attackers can inject arguments into backup commands to write arbitrary files and execute code on the host.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.9,"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-20","name":"Improper Input Validation"}],"description":"Incus is a system container and virtual machine manager. Prior to version 7.1.0, improper validation of user-provided backup compression algorithm leads to argument injection in the constructed command line. This leads to an arbitrary file write on the host, possibly leading to arbitrary command execution. Version 7.1.0 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 an argument injection in backup compression algorithm leading to AFW and ACE","id":"CVE-2026-48755","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":5,"n_references":1,"next":{"headline":"Incus: CreateCustomVolumeFromBackup nil-pointer dereference on volume_snapshots[*].expires_at (sibling-field variant of GHSA-r7w7)","id":"CVE-2026-48756"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus","purl":"pkg:golang/github.com/lxc/incus","source":"GO-2026-5808"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v6","purl":"pkg:golang/github.com/lxc/incus/v6","source":"GO-2026-5808"},{"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-2026-5808"},{"ecosystem":"Go","fixed":["7.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v7/cmd/incusd","purl":null,"source":"GHSA-v6mj-8pf4-hhw4"},{"ecosystem":"Go","fixed":["7.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/lxc/incus/v7/cmd/incusd","purl":"pkg:golang/github.com/lxc/incus/v7/cmd/incusd","source":"GHSA-v6mj-8pf4-hhw4"}],"prev":{"headline":"Incus: Nil-pointer dereference in createDependentVolumesFromBackup on disk.{Volume,VolumeSnapshots,Pool}","id":"CVE-2026-48754"},"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":"total"},"state":"PUBLISHED","updated":"2026-08-21","vendors":["lxc"]},"summary":"Attackers can inject arguments into backup commands to write arbitrary files and execute code on the host.","url":"https://insights.sbomify.com/CVE-2026-48755/"}