{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91203 exists.","fix":"Apply the vendor's patch.","what":"CVE-2026-91203 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 18 Sep 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-2026-91203 and fix it if it is affected.\n\nWhat it is: CVE-2026-91203 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 18 Sep 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91203 exists.\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-2026-91203/ (Markdown: https://insights.sbomify.com/CVE-2026-91203/index.md)","id":"CVE-2026-91203","markdown":"https://insights.sbomify.com/CVE-2026-91203/index.md","name":"CVE-2026-91203","record":{"aliases":["DEBIAN-CVE-2026-91203","GHSA-2wj2-6xq8-f5rx","UBUNTU-CVE-2026-91203"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Red Hat Enterprise Linux","requires_auth":"low_privilege","summary":"Local attackers can exploit a symlink race condition in cockpit-files to modify ownership and permissions of arbitrary files, potentially compromising system integrity.","user_interaction":"required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-363","name":"Race Condition Enabling Link Following"}],"description":"A flaw was found in cockpit-files. This vulnerability allows a local attacker to exploit a timing issue, known as a symlink race condition, during privileged file operations such as changing file ownership or permissions. By manipulating directory entries and winning this race, the attacker can redirect these operations to unintended files. This could lead to unauthorized changes in file ownership and permissions on arbitrary files, potentially compromising system integrity and availability by altering system or application states or rendering services unusable.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Cockpit-files: cockpit-files: arbitrary file ownership and permission modification via symlink race condition","id":"CVE-2026-91203","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Apache Roller: Stored javascript: URI in HTML comments","id":"CVE-2026-91204"},"packages":[],"prev":{"headline":"Cockpit-files: cockpit-files: arbitrary file ownership change via symlink following in privileged paste","id":"CVE-2026-91202"},"products":["Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 9"],"published":"2026-09-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["Red Hat"]},"summary":"Local attackers can exploit a symlink race condition in cockpit-files to modify ownership and permissions of arbitrary files, potentially compromising system integrity.","url":"https://insights.sbomify.com/CVE-2026-91203/"}