{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-41133 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-41133 is a high-severity vulnerability in Debian Debian Linux, published on 8 Oct 2021. 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-2021-41133 and fix it if it is affected.\n\nWhat it is: CVE-2021-41133 is a high-severity vulnerability in Debian Debian Linux, published on 8 Oct 2021. 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-2021-41133 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2021-41133/ (Markdown: https://insights.sbomify.com/CVE-2021-41133/index.md)","id":"CVE-2021-41133","markdown":"https://insights.sbomify.com/CVE-2021-41133/index.md","name":"CVE-2021-41133","record":{"aliases":["ALEA-2021:4539","ALSA-2021:4042","CLEANSTART-2024-JX19003","DEBIAN-CVE-2021-41133","DSA-4984-1","GHSA-67h7-w3jq-vh4q","MGASA-2021-0486","OESA-2021-1404","RHSA-2021:4042","RHSA-2021:4044","RHSA-2021:4106","RHSA-2021:4107","RLSA-2021:4042","SUSE-SU-2021:3472-1","SUSE-SU-2022:3439-1","UBUNTU-CVE-2021-41133","USN-5191-1","openSUSE-SU-2021:1400-1","openSUSE-SU-2021:3472-1","openSUSE-SU-2024:11574-1"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Flatpak sandbox","requires_auth":"low_privilege","summary":"Flatpak apps can bypass sandbox restrictions by manipulating the virtual filesystem to trick host services into granting elevated privileges.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"flatpak","vendor":"flatpak"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.4 and 1.12.0, Flatpak apps with direct access to AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can trick portals and other host-OS services into treating the Flatpak app as though it was an ordinary, non-sandboxed host-OS process. They can do this by manipulating the VFS using recent mount-related syscalls that are not blocked by Flatpak's denylist seccomp filter, in order to substitute a crafted `/.flatpak-info` or make that file disappear entirely. Flatpak apps that act as clients for AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can escalate the privileges that the corresponding services will believe the Flatpak app has. Note that protocols that operate entirely over the D-Bus session bus (user bus), system bus or accessibility bus are not affected by this. This is due to the use of a proxy process `xdg-dbus-proxy`, whose VFS cannot be manipulated by the Flatpak app, when interacting with these buses. Patches exist for versions 1.10.4 and 1.12.0, and as of time of publication, a patch for version 1.8.2 is being planned. There are no workarounds aside from upgrading to a patched version.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","Red Hat:enterprise_linux:8::appstream","Red Hat:rhel_eus:8.1::appstream","Red Hat:rhel_eus:8.2::appstream","Rocky Linux:8","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Module for Desktop Applications 15 SP2","SUSE:Linux Enterprise Module for Desktop Applications 15 SP3","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 15","openSUSE:Leap 15.2","openSUSE:Leap 15.3","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":"Sandbox bypass via recent VFS-manipulating syscalls","id":"CVE-2021-41133","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora"],"type":"privilege_escalation","year":"2021"},"n_packages":63,"n_references":14,"next":{"headline":"Stored XSS in Jupyter nbdime","id":"CVE-2021-41134"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/almalinux/flatpak","source":"ALSA-2021:4042"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-5.el8_5"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/almalinux/flatpak","source":"ALEA-2021:4539"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-5.el8_5"],"introduced":["0"],"last_affected":[],"package":"flatpak-devel","purl":"pkg:rpm/almalinux/flatpak-devel","source":"ALEA-2021:4539"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs","purl":"pkg:rpm/almalinux/flatpak-libs","source":"ALSA-2021:4042"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-5.el8_5"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs","purl":"pkg:rpm/almalinux/flatpak-libs","source":"ALEA-2021:4539"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-selinux","purl":"pkg:rpm/almalinux/flatpak-selinux","source":"ALSA-2021:4042"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-5.el8_5"],"introduced":["0"],"last_affected":[],"package":"flatpak-selinux","purl":"pkg:rpm/almalinux/flatpak-selinux","source":"ALEA-2021:4539"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-session-helper","purl":"pkg:rpm/almalinux/flatpak-session-helper","source":"ALSA-2021:4042"},{"ecosystem":"AlmaLinux:8","fixed":["1.8.5-5.el8_5"],"introduced":["0"],"last_affected":[],"package":"flatpak-session-helper","purl":"pkg:rpm/almalinux/flatpak-session-helper","source":"ALEA-2021:4539"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/redhat/flatpak","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:1.0.0-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-builder","purl":"pkg:rpm/redhat/flatpak-builder","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-debuginfo","purl":"pkg:rpm/redhat/flatpak-debuginfo","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-devel","purl":"pkg:rpm/redhat/flatpak-devel","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs","purl":"pkg:rpm/redhat/flatpak-libs","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/redhat/flatpak","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:1.0.0-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-builder","purl":"pkg:rpm/redhat/flatpak-builder","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-debuginfo","purl":"pkg:rpm/redhat/flatpak-debuginfo","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-devel","purl":"pkg:rpm/redhat/flatpak-devel","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs","purl":"pkg:rpm/redhat/flatpak-libs","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/redhat/flatpak","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1.0.0-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-builder","purl":"pkg:rpm/redhat/flatpak-builder","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-debuginfo","purl":"pkg:rpm/redhat/flatpak-debuginfo","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-devel","purl":"pkg:rpm/redhat/flatpak-devel","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs","purl":"pkg:rpm/redhat/flatpak-libs","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/redhat/flatpak","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:1.0.0-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-builder","purl":"pkg:rpm/redhat/flatpak-builder","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-debuginfo","purl":"pkg:rpm/redhat/flatpak-debuginfo","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-devel","purl":"pkg:rpm/redhat/flatpak-devel","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:1.0.9-12.el7_9"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs","purl":"pkg:rpm/redhat/flatpak-libs","source":"RHSA-2021:4044"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/redhat/flatpak","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-debuginfo","purl":"pkg:rpm/redhat/flatpak-debuginfo","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-debugsource","purl":"pkg:rpm/redhat/flatpak-debugsource","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs","purl":"pkg:rpm/redhat/flatpak-libs","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-libs-debuginfo","purl":"pkg:rpm/redhat/flatpak-libs-debuginfo","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-selinux","purl":"pkg:rpm/redhat/flatpak-selinux","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-session-helper","purl":"pkg:rpm/redhat/flatpak-session-helper","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-session-helper-debuginfo","purl":"pkg:rpm/redhat/flatpak-session-helper-debuginfo","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.8.5-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"flatpak-tests-debuginfo","purl":"pkg:rpm/redhat/flatpak-tests-debuginfo","source":"RHSA-2021:4042"},{"ecosystem":"Red Hat:rhel_eus:8.1::appstream","fixed":["0:1.0.9-5.el8_1"],"introduced":["0"],"last_affected":[],"package":"flatpak","purl":"pkg:rpm/redhat/flatpak","source":"RHSA-2021:4106"},{"ecosystem":"Red Hat:rhel_eus:8.1::appstream","fixed":["0:1.0.9-5.el8_1"],"introduced":["0"],"last_affected":[],"package":"flatpak-debuginfo","purl":"pkg:rpm/redhat/flatpak-debuginfo","source":"RHSA-2021:4106"}],"prev":{"headline":"Inconsistent input sanitisation leads to XSS vectors","id":"CVE-2021-41132"},"products":["flatpak"],"published":"2021-10-08","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALEA"},{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"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":"total"},"state":"PUBLISHED","updated":"2024-08-04","vendors":["flatpak"]},"summary":"Flatpak apps can bypass sandbox restrictions by manipulating the virtual filesystem to trick host services into granting elevated privileges.","url":"https://insights.sbomify.com/CVE-2021-41133/"}