{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-19079 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-19079 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 7 Aug 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-2026-19079 and fix it if it is affected.\n\nWhat it is: CVE-2026-19079 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 7 Aug 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-2026-19079 in the wild and no public exploit code.\n\nAffected product: Red Hat Enterprise Linux 10. 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-2026-19079/ (Markdown: https://insights.sbomify.com/CVE-2026-19079/index.md)","id":"CVE-2026-19079","markdown":"https://insights.sbomify.com/CVE-2026-19079/index.md","name":"CVE-2026-19079","record":{"aliases":["DEBIAN-CVE-2026-19079","GHSA-8hc6-8f5m-vmq3","RHSA-2026:51861","UBUNTU-CVE-2026-19079"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux SELinux utilities","requires_auth":"low_privilege","summary":"A local attacker can exploit a race condition in fixfiles to manipulate SELinux labels on arbitrary files, potentially bypassing mandatory access controls.","user_interaction":"required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":4.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"A TOCTOU (Time-of-Check-Time-of-Use) race condition vulnerability was found in the fixfiles script in policycoreutils. When running fixfiles relabel or fixfiles restore, the script used find and chcon commands to locate and relabel unlabeled files under /tmp and other directories. A local attacker could exploit a race window between the file discovery and the label change operation by swapping directory components with symlinks, causing chcon to follow the symlink and modify SELinux labels on arbitrary system files. This could undermine SELinux mandatory access control protections on critical files such as /etc/shadow.","ecosystems":["Red Hat:hummingbird:1"],"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":"Policycoreutils: policycoreutils: toctou race condition in fixfiles allows arbitrary selinux label manipulation","id":"CVE-2026-19079","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":9,"n_references":4,"next":{"headline":"Username Enumeration in Menulux Software's Menulux Portal","id":"CVE-2026-19080"},"packages":[{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils","purl":"pkg:rpm/redhat/policycoreutils","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils-dbus","purl":"pkg:rpm/redhat/policycoreutils-dbus","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils-devel","purl":"pkg:rpm/redhat/policycoreutils-devel","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils-gui","purl":"pkg:rpm/redhat/policycoreutils-gui","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils-newrole","purl":"pkg:rpm/redhat/policycoreutils-newrole","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils-python-utils","purl":"pkg:rpm/redhat/policycoreutils-python-utils","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils-restorecond","purl":"pkg:rpm/redhat/policycoreutils-restorecond","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"policycoreutils-sandbox","purl":"pkg:rpm/redhat/policycoreutils-sandbox","source":"RHSA-2026:51861"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.11-2.2.hum1"],"introduced":["0"],"last_affected":[],"package":"python3-policycoreutils","purl":"pkg:rpm/redhat/python3-policycoreutils","source":"RHSA-2026:51861"}],"prev":{"headline":"Ose-oauth-server: oauth-server: open redirect vulnerability enables phishing via unvalidated parameter.","id":"CVE-2026-19078"},"products":["Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 6","Red Hat Enterprise Linux 7","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 9","Red Hat Hardened Images","Red Hat OpenShift Container Platform 4"],"published":"2026-08-07","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":"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":"2026-09-01","vendors":["Red Hat"]},"summary":"A local attacker can exploit a race condition in fixfiles to manipulate SELinux labels on arbitrary files, potentially bypassing mandatory access controls.","url":"https://insights.sbomify.com/CVE-2026-19079/"}