{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-47766 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-47766 is a medium-severity path traversal vulnerability in containers crun, published on 14 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-47766 and fix it if it is affected.\n\nWhat it is: CVE-2026-47766 is a medium-severity path traversal vulnerability in containers crun, published on 14 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-47766 in the wild and no public exploit code.\n\nAffected product: containers crun. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-47766/ (Markdown: https://insights.sbomify.com/CVE-2026-47766/index.md)","id":"CVE-2026-47766","markdown":"https://insights.sbomify.com/CVE-2026-47766/index.md","name":"CVE-2026-47766","record":{"aliases":["AZL-95985","BELL-CVE-2026-47766","DEBIAN-CVE-2026-47766","GHSA-7vwr-4279-7gq5","RHSA-2026:54855","SUSE-SU-2026:22247-1","SUSE-SU-2026:22395-1","UBUNTU-CVE-2026-47766","openSUSE-SU-2026:11030-1"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["data_modify","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"OCI container runtime","requires_auth":"none","summary":"An attacker with a malicious OCI bundle can escape the container rootfs to create or overwrite device nodes and symlinks on the host filesystem.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-61","name":"UNIX Symbolic Link (Symlink) Following"}],"description":"crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container rootfs `/dev` directory without `O_NOFOLLOW`. If an OCI bundle contains `rootfs/dev` as a symlink and the bundle configuration does not mount `/dev`, crun follows that symlink and creates the default device nodes and stdio symlinks at the symlink target outside the container rootfs. In a local rootful crun replay, this created fixed device nodes and symlinks outside the rootfs before crun returned failure. A pre-existing file named `ptmx` in the target directory was also replaced by crun's forced `ptmx -\u003e pts/ptmx` symlink. Version 1.28 fixes the issue.","ecosystems":["Red Hat:hummingbird:1","SUSE:Linux Micro 6.0","SUSE:Linux Micro 6.1","openSUSE:Tumbleweed"],"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":"crun follows rootfs /dev symlink while creating default devices","id":"CVE-2026-47766","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":6,"n_references":2,"next":{"headline":"SymfonyRuntime CVE-2024-50340 Patch Bypass: Web Requests Can Still Set APP_ENV/APP_DEBUG via parse_str/SAPI Argv Mismatch","id":"CVE-2026-47767"},"packages":[{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:1.28-2.hum1"],"introduced":["0"],"last_affected":[],"package":"crun","purl":"pkg:rpm/redhat/crun","source":"RHSA-2026:54855"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:1.28-2.hum1"],"introduced":["0"],"last_affected":[],"package":"crun-krun","purl":"pkg:rpm/redhat/crun-krun","source":"RHSA-2026:54855"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:1.28-2.hum1"],"introduced":["0"],"last_affected":[],"package":"crun-wasm","purl":"pkg:rpm/redhat/crun-wasm","source":"RHSA-2026:54855"},{"ecosystem":"SUSE:Linux Micro 6.0","fixed":["1.14-3.1"],"introduced":["0"],"last_affected":[],"package":"crun","purl":"pkg:rpm/suse/crun\u0026distro=SUSE%20Linux%20Micro%206.0","source":"SUSE-SU-2026:22395-1"},{"ecosystem":"SUSE:Linux Micro 6.1","fixed":["1.15-slfo.1.1_2.1"],"introduced":["0"],"last_affected":[],"package":"crun","purl":"pkg:rpm/suse/crun\u0026distro=SUSE%20Linux%20Micro%206.1","source":"SUSE-SU-2026:22247-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.28-1.1"],"introduced":["0"],"last_affected":[],"package":"crun","purl":"pkg:rpm/opensuse/crun\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11030-1"}],"prev":{"headline":"Frappe: Lack of Permissions in restore/bulk_restore","id":"CVE-2026-47765"},"products":["crun"],"published":"2026-08-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"2026-08-14","vendors":["containers"]},"summary":"An attacker with a malicious OCI bundle can escape the container rootfs to create or overwrite device nodes and symlinks on the host filesystem.","url":"https://insights.sbomify.com/CVE-2026-47766/"}