UNKNOWN NVD
CVE-2026-96276
If a malicious SDK container declares an extension point with a crafted `directory` path, and a developer runs `flatpak build-init --writable-sdk --sdk-extensio
If a malicious SDK container declares an extension point with a crafted `directory` path, and a developer runs `flatpak build-init --writable-sdk --sdk-extension` with that SDK, attacker-chosen files could be written outside the working directory, since the target path is resolved via a function that allows `..` traversal.
References
- https://access.redhat.com/security/cve/CVE-2026-96276
- https://bugzilla.redhat.com/show_bug.cgi?id=2539418
- https://github.com/flatpak/flatpak/security/advisories/GHSA-8qxj-x646-phcm
This unknown severity vulnerability was published on 2026-09-23 via NVD.
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