{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-96808 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-96808 is a high-severity path traversal vulnerability in Flatpak, published on 23 Sep 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-2026-96808 and fix it if it is affected.\n\nWhat it is: CVE-2026-96808 is a high-severity path traversal vulnerability in Flatpak, published on 23 Sep 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-2026-96808 in the wild and no public exploit code.\n\nAffected product: Flatpak. 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-2026-96808/ (Markdown: https://insights.sbomify.com/CVE-2026-96808/index.md)","id":"CVE-2026-96808","markdown":"https://insights.sbomify.com/CVE-2026-96808/index.md","name":"CVE-2026-96808","record":{"aliases":["CLSA-2026-1790844951","CLSA-2026-1791735799","DEBIAN-CVE-2026-96808","GHSA-qrwq-7qwx-q9rp","OESA-2026-4569","OESA-2026-4571","UBUNTU-CVE-2026-96808"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Flatpak system helper","requires_auth":"none","summary":"A local attacker can exploit symlink traversal in Flatpak's revokefs writer to modify system repository files and escalate privileges to root.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-61","name":"UNIX Symbolic Link (Symlink) Following"}],"description":"In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers, validated file paths by rejecting literal .. components but did not prevent symlink traversal. A malicious local user in an active local session could obtain two revokefs sessions via the system helper, create a symlink in one session pointing into the other session's directory, and retain a file descriptor through that symlink. This allowed the attacker to modify files belonging to a different revokefs session after they had been validated and imported by the system helper. In particular, an attacker could use this to tamper with ostree commit objects in the system repository after they passed signature verification, enabling root-controlled file writes to attacker-chosen paths and local root privilege escalation.","ecosystems":[],"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":"Path traversal in Flatpak","id":"CVE-2026-96808","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"WordPress EduAdmin Booking plugin \u003c 6.0.0 - SQL Injection vulnerability","id":"CVE-2026-96809"},"packages":[],"prev":{"headline":"Path traversal in Flatpak","id":"CVE-2026-96807"},"products":["Flatpak"],"published":"2026-09-23","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-23","vendors":["Flatpak"]},"summary":"A local attacker can exploit symlink traversal in Flatpak's revokefs writer to modify system repository files and escalate privileges to root.","url":"https://insights.sbomify.com/CVE-2026-96808/"}