CVE-2026-92162
Severity not reportedFlatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Prior to version 1.18.1, on systems where at least one OCI remote is configured (most common on Fedora systems), a malicious local user in an active local session could use a crafted architecture name to trick the `flatpak-system-helper` process into creating a root-owned directory tree with contents determined by the OCI remote, plus a root-owned `lock` file and `icons` directory, outside the intended root directory. If this vulnerability is combined with other vulnerabilities also fixed in 1.18.1, the combination can lead to local root privilege escalation. This particular vulnerability is not believed to be exploitable if there are no OCI remotes configured (common on non-Fedora systems). Version 1.18.1 patches the issue.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/flatpak/flatpak/commit/01773f84021dd090b2426f79675f94f2564f9279 security-advisories@github.com
- https://github.com/flatpak/flatpak/commit/19456b916842b079af833a86b9ab89c5db154b92 security-advisories@github.com
- https://github.com/flatpak/flatpak/commit/aeb369a2723506fabc1f701ef7a0dc6c97c4b983 security-advisories@github.com
- https://github.com/flatpak/flatpak/pull/6768 security-advisories@github.com
- https://github.com/flatpak/flatpak/security/advisories/GHSA-v2gw-v9h5-9q4x security-advisories@github.com