{"answers":{"affected":"7 open source packages ship an affected version, including github.com/opencontainers/runc. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-41579 in the wild and no public exploit code.","fix":"Upgrade github.com/opencontainers/runc to a fixed version for your release line: 1.3.6, 1.4.3 or 1.5.0-rc.3.","what":"CVE-2026-41579 is a low-severity path traversal vulnerability in opencontainers runc, published on 1 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-41579 and fix it if it is affected.\n\nWhat it is: CVE-2026-41579 is a low-severity path traversal vulnerability in opencontainers runc, published on 1 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-41579 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/opencontainers/runc (Go): affected all versions; fixed in 1.3.6, 1.4.3, 1.5.0-rc.3\n- github.com/opencontainers/runc (Go): affected all versions; fixed in 1.3.6\n- github.com/opencontainers/runc (Go): affected all versions; fixed in 1.3.6\n- github.com/opencontainers/runc (Go): affected from 1.4.0; fixed in 1.4.3\n- github.com/opencontainers/runc (Go): affected from 1.4.0; fixed in 1.4.3\n- github.com/opencontainers/runc (Go): affected from 1.5.0-rc.1; fixed in 1.5.0-rc.3\n- github.com/opencontainers/runc (Go): affected from 1.5.0-rc.1; fixed in 1.5.0-rc.3\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-2026-41579/ (Markdown: https://insights.sbomify.com/CVE-2026-41579/index.md)","id":"CVE-2026-41579","markdown":"https://insights.sbomify.com/CVE-2026-41579/index.md","name":"CVE-2026-41579","record":{"aliases":["AZL-91590","BELL-CVE-2026-41579","CLEANSTART-2026-GY71678","CLEANSTART-2026-RD37922","CLSA-2026-1783518302","CLSA-2026-1784034091","DEBIAN-CVE-2026-41579","ECHO-8ef4-9440-0016","GHSA-xjvp-4fhw-gc47","GO-2026-5761","MINI-23qg-qq54-p48h","MINI-2pfm-jhhr-wm3h","MINI-2qqj-7wj5-jgpx","MINI-4x4v-42pc-2357","MINI-77jw-r8m5-vwhw","MINI-7gmv-8pxm-vchm","MINI-7qfv-hp5j-qpf8","MINI-7wr5-9rfq-p8j5","MINI-8cm2-p6jj-c5rr","MINI-933h-g6fh-99jm","MINI-95pf-rcr5-57h5","MINI-96g9-22c2-9x5v","MINI-9c64-5p8x-fg8r","MINI-c3qh-82fg-gjfr","MINI-fccc-q545-rqm2","MINI-ff8v-2245-q79g","MINI-h2vm-h37g-8h5p","MINI-h87j-g34h-6w9g","MINI-hj8x-wxv3-p5c9","MINI-hwq8-9crg-rj79","MINI-jc9g-pp45-q5q2","MINI-jh72-gq3h-c576","MINI-pgv2-6mj7-6mwc","MINI-qr36-cmv6-675w","MINI-v359-jc24-3v4w","MINI-v4pv-qg54-wm6c","MINI-w2j4-5434-qmwx","MINI-wqj3-phjx-p33j","MINI-x4xr-94f6-m6hw","MINI-xqww-jwf6-6924","MINI-xw75-qh2f-3xgh","OESA-2026-3154","SUSE-SU-2026:23047-1","SUSE-SU-2026:23164-1","SUSE-SU-2026:3428-2","SUSE-SU-2026:3433-2","UBUNTU-CVE-2026-41579","openSUSE-SU-2026:11301-1"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"OCI container runtime","requires_auth":"none","summary":"A malicious container image can trick runc into deleting host files or creating symlinks, compromising host filesystem integrity.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"runc","vendor":"linuxfoundation"}],"cvss":{"score":3.3,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-61","name":"UNIX Symbolic Link (Symlink) Following"}],"description":"runc is a CLI tool for spawning and running containers according to the OCI specification. In versions prior to 1.3.6, 1.4.0-rc.1, 1.4.0-rc.12, 1.5.0-rc.1, and 1.5.0-rc.1, when setting up the container rootfs, setupPtmx and setupDevSymlinks call os.Remove and os.Symlink with a filepath.Join string which allow an image with /dev as a symlink to trick runc into deleting files called ptmx on the host or creating a hardcoded set of symlinks with specific names and targets in an arbitrary pre-existing host directory. This issue is not exploitable under Docker, because Docker creates a top-level read-only layer that masks any malicious /dev symlink present in the container image — unlike some other Linux container tooling, whose higher-level runtimes built on runc remain exposed to exploitation via a malicious image. This issue has been fixed in versions 1.3.6, 1.4.3 and 1.5.0.","ecosystems":["Go","SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","SUSE:Linux Enterprise Server 12 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server 15 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP6-LTSS","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP6","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":"runc: Malicious image with /dev symlink can trigger limited host filesystem integrity violations","id":"CVE-2026-41579","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":21,"n_references":2,"next":{"headline":"Stirling-PDF: Reflected XSS through crafted PDF metadata fields (Title and Author)","id":"CVE-2026-41580"},"packages":[{"ecosystem":"Go","fixed":["1.3.6","1.4.3","1.5.0-rc.3"],"introduced":["0","1.4.0","1.5.0-rc.1"],"last_affected":[],"package":"github.com/opencontainers/runc","purl":"pkg:golang/github.com/opencontainers/runc","source":"GO-2026-5761"},{"ecosystem":"Go","fixed":["1.3.6"],"introduced":["0"],"last_affected":[],"package":"github.com/opencontainers/runc","purl":null,"source":"GHSA-xjvp-4fhw-gc47"},{"ecosystem":"Go","fixed":["1.3.6"],"introduced":["0"],"last_affected":[],"package":"github.com/opencontainers/runc","purl":"pkg:golang/github.com/opencontainers/runc","source":"GHSA-xjvp-4fhw-gc47"},{"ecosystem":"Go","fixed":["1.4.3"],"introduced":["1.4.0"],"last_affected":[],"package":"github.com/opencontainers/runc","purl":null,"source":"GHSA-xjvp-4fhw-gc47"},{"ecosystem":"Go","fixed":["1.4.3"],"introduced":["1.4.0"],"last_affected":[],"package":"github.com/opencontainers/runc","purl":"pkg:golang/github.com/opencontainers/runc","source":"GHSA-xjvp-4fhw-gc47"},{"ecosystem":"Go","fixed":["1.5.0-rc.3"],"introduced":["1.5.0-rc.1"],"last_affected":[],"package":"github.com/opencontainers/runc","purl":null,"source":"GHSA-xjvp-4fhw-gc47"},{"ecosystem":"Go","fixed":["1.5.0-rc.3"],"introduced":["1.5.0-rc.1"],"last_affected":[],"package":"github.com/opencontainers/runc","purl":"pkg:golang/github.com/opencontainers/runc","source":"GHSA-xjvp-4fhw-gc47"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["1.3.6-16.76.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:3428-2"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP5-LTSS","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP4","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP5","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP6","fixed":["1.3.6-150000.101.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6","source":"SUSE-SU-2026:3433-2"},{"ecosystem":"SUSE:Linux Micro 6.0","fixed":["1.3.6-1.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Micro%206.0","source":"SUSE-SU-2026:23047-1"},{"ecosystem":"SUSE:Linux Micro 6.1","fixed":["1.3.6-slfo.1.1_1.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/suse/runc\u0026distro=SUSE%20Linux%20Micro%206.1","source":"SUSE-SU-2026:23164-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.4.3-1.1"],"introduced":["0"],"last_affected":[],"package":"runc","purl":"pkg:rpm/opensuse/runc\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11301-1"}],"prev":{"headline":"authentik: SAML source does not validate Conditions, timing, or audience on assertions","id":"CVE-2026-41577"},"products":["runc"],"published":"2026-07-01","related":[{"cvss_score":8.4,"headline":"container escape due to /dev/console mount and related races","id":"CVE-2025-52565","kev_date_added":null,"published":"2025-11-06"},{"cvss_score":7.3,"headline":"runc container escape via \"masked path\" abuse due to mount race conditions","id":"CVE-2025-31133","kev_date_added":null,"published":"2025-11-06"},{"cvss_score":7.3,"headline":"runc: LSM labels can be bypassed with malicious config using dummy procfs files","id":"CVE-2025-52881","kev_date_added":null,"published":"2025-11-06"},{"cvss_score":6.1,"headline":"AppArmor bypass with symlinked /proc in runc","id":"CVE-2023-28642","kev_date_added":null,"published":"2023-03-29"},{"cvss_score":5,"headline":"rootless: `/sys/fs/cgroup` is writable when cgroupns isn't unshared in runc","id":"CVE-2023-25809","kev_date_added":null,"published":"2023-03-29"},{"cvss_score":3.6,"headline":"runc can be confused to create empty files/directories on the host","id":"CVE-2024-45310","kev_date_added":null,"published":"2024-09-03"}],"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":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-07-01","vendors":["opencontainers"]},"summary":"A malicious container image can trick runc into deleting host files or creating symlinks, compromising host filesystem integrity.","url":"https://insights.sbomify.com/CVE-2026-41579/"}