CVE-2026-23949

jaraco.context: jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip...

CVE-2026-23949 is fixed in 4 products on 1 platform, first by python3-jaraco.context 6.0.1-1ubuntu0.1, released January 19, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.6
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0063
50th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
jaraco.context · Debian 13.5 (trixie) 6.0.1-1+deb13u1 DEBIAN-CVE-2026-23949 Jan 20, 2026
jaraco.context · Debian 14 6.0.1-2 DEBIAN-CVE-2026-23949 Jan 20, 2026
python-jaraco.context · opensuse-leap 16.0 5.3.0-160000.3.1 OPENSUSE-SU-2026:20095-1 Jan 23, 2026
python-jaraco.context · sles 16.0 5.3.0-160000.3.1 SUSE-SU-2026:20139-1 Jan 23, 2026
python3-jaraco.context · Ubuntu 25.10 (questing) 6.0.1-1ubuntu0.1 python3-jaraco.context 6.0.1-1ubuntu0.1 Jan 19, 2026
setuptools · Debian 14 84.0.0-2 DEBIAN-CVE-2026-23949 Jan 20, 2026

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