Description
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.
Published:
2026-09-23
Score:
n/a
EPSS:
n/a
KEV:
No
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
Vendor Workaround
Fixed in v1.18.1. Avoid using an non-trusted SDK for development/compilation.
Tracking
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Advisories
No advisories yet.
References
History
Wed, 23 Sep 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Flatpak: flatpak: arbitrary write in host context via flatpak build-init | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-22 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-23T15:28:23.421Z
Reserved: 2026-09-22T20:42:35.875Z
Link: CVE-2026-96276
No data.
Status : Received
Published: 2026-09-23T15:17:32.317
Modified: 2026-09-23T15:17:32.317
Link: CVE-2026-96276
No data.
OpenCVE Enrichment
No data.
Weaknesses
-
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')