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Solution
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Workaround
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Thu, 20 Aug 2026 20:30:00 +0000
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ssvc
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Thu, 20 Aug 2026 18:15:00 +0000
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| First Time appeared |
Nixos
Nixos nix |
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| Vendors & Products |
Nixos
Nixos nix |
Thu, 20 Aug 2026 16:45:00 +0000
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| Description | Nix is a package manager for Linux and other Unix systems. Prior to 2.35.0, a malicious derivation executed with the recursive-nix experimental feature can exploit a time-of-check/time-of-use race involving final symlink handling in the LocalStore restore path. The race can cause writeFile to follow a substituted final symlink when opening a path with O_TRUNC instead of enforcing FinalSymlink::DontFollow, allowing the Nix process or nix-daemon to create or truncate an empty file outside the build sandbox with the daemon user's permissions. The primitive does not provide arbitrary-content writes and requires winning the race. This issue is fixed in version 2.35.0. | |
| Title | Nix: Arbitrary file truncation outside the sandbox with recursive-nix experimental feature | |
| Weaknesses | CWE-367 CWE-61 |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-20T19:32:22.878Z
Reserved: 2026-07-20T18:31:39.290Z
Link: CVE-2026-64846
Updated: 2026-08-20T19:32:18.723Z
Status : Received
Published: 2026-08-20T17:19:16.813
Modified: 2026-08-20T20:17:45.813
Link: CVE-2026-64846
No data.
OpenCVE Enrichment
Updated: 2026-08-20T20:30:05Z