| Name | CVE-2026-23949 |
| Description | jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip Slip path traversal vulnerability in the `jaraco.context.tarball()` function starting in version 5.2.0 and prior to version 6.1.0. The vulnerability may allow attackers to extract files outside the intended extraction directory when malicious tar archives are processed. The strip_first_component filter splits the path on the first `/` and extracts the second component, while allowing `../` sequences. Paths like `dummy_dir/../../etc/passwd` become `../../etc/passwd`. Note that this suffers from a nested tarball attack as well with multi-level tar files such as `dummy_dir/inner.tar.gz`, where the inner.tar.gz includes a traversal `dummy_dir/../../config/.env` that also gets translated to `../../config/.env`. Version 6.1.0 contains a patch for the issue. |
| 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) |
| Debian Bugs | 1126078, 1126729 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| jaraco.context (PTS) | bookworm | 4.2.0-1 | fixed |
| trixie | 6.0.1-1 | vulnerable | |
| forky, sid | 6.0.1-2 | fixed | |
| setuptools (PTS) | bullseye | 52.0.0-4 | fixed |
| bullseye (security) | 52.0.0-4+deb11u2 | fixed | |
| bookworm | 66.1.1-1+deb12u2 | fixed | |
| forky, sid, trixie | 78.1.1-0.1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| jaraco.context | source | bookworm | (not affected) | |||
| jaraco.context | source | (unstable) | 6.0.1-2 | 1126078 | ||
| setuptools | source | bullseye | (not affected) | |||
| setuptools | source | bookworm | (not affected) | |||
| setuptools | source | (unstable) | (unfixed) | 1126729 |
[trixie] - jaraco.context <no-dsa> (Minor issue)
[bookworm] - jaraco.context <not-affected> (Vulnerable code not present)
[trixie] - setuptools <no-dsa> (Minor issue)
[bookworm] - setuptools <not-affected> (Vulnerable code not present, bundled jaraco.context too old)
[bullseye] - setuptools <not-affected> (Vulnerable code not present, bundled jaraco.context too old)
https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2
Introduced with: https://github.com/jaraco/jaraco.context/commit/e13fc7f2b379683c326153a3d6f4d2800f812fd0 (v5.2.0)
Fixed by: https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9 (v6.1.0)
setuptools includes a bundled version