medium5.3
CVE-2026-12565
The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of exter…
Impact
The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools (e.g. GNU tar) which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extraction path traversal was never fixed. On systems with GNU tar < 1.34 (Ubuntu 20.04, Debian Buster, CentOS 7, many Docker base images), a malicious archive can write files outside the intended extraction directory.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | bbot | >= 2.3.1, <= 2.8.4 | 2.8.5 |