| Name | CVE-2026-114583 |
| Description | tarfile.tar_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() with filter="tar" to write files outside the destination directory, subject to the permissions of the extracting process. This is the tarfile.tar_filter counterpart of CVE-2026-7774, which covered tarfile.data_filter. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| jython (PTS) | forky, sid, bookworm, trixie | 2.7.3+repack1-1 | vulnerable |
| pypy3 (PTS) | bookworm | 7.3.11+dfsg-2+deb12u3 | vulnerable |
| trixie | 7.3.19+dfsg-2 | vulnerable | |
| forky, sid | 8.0.1+dfsg-1 | vulnerable | |
| python3.11 (PTS) | bookworm | 3.11.2-6+deb12u8 | vulnerable |
| bookworm (security) | 3.11.2-6+deb12u9 | vulnerable | |
| python3.13 (PTS) | trixie | 3.13.5-2+deb13u5 | vulnerable |
| forky, sid | 3.13.15-1 | vulnerable | |
| python3.14 (PTS) | forky, sid | 3.14.8-1 | vulnerable |
| python3.15 (PTS) | forky, sid | 3.15.0-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| jython | source | (unstable) | (unfixed) | |||
| pypy3 | source | (unstable) | (unfixed) | |||
| python3.11 | source | (unstable) | (unfixed) | |||
| python3.13 | source | (unstable) | (unfixed) | |||
| python3.14 | source | (unstable) | 3.14.9-1 | |||
| python3.15 | source | (unstable) | 3.15.1-1 |
[trixie] - python3.13 <no-dsa> (Minor issue)
[trixie] - pypy3 <no-dsa> (Minor issue)
https://github.com/python/cpython/issues/160097
https://github.com/python/cpython/pull/160098
https://github.com/python/cpython/commit/e7e0b3523ad6ba8472873dda594cf4021a16f8b5 (main)
https://github.com/python/cpython/commit/c6ada40177436e4e2533a7b252082b5f0c043477 (3.15 branch)
https://github.com/python/cpython/commit/0901ad4ffb22605f12b705d1c1197f0a01f0ba0b (3.14 branch)
https://github.com/python/cpython/pull/160341 (3.13)
https://github.com/python/cpython/pull/160343 (3.11)