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NVD Vulnerability Details :
CVE-2026-23949
Analyzed
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-20 Jan, 2026 | 01:15
Updated At-11 Mar, 2026 | 23:12

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.18.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 8.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CPE Matches

jaraco
jaraco
>>jaraco.context>>Versions from 5.2.0(inclusive) to 6.1.0(exclusive)
cpe:2.3:a:jaraco:jaraco.context:*:*:*:*:*:python:*:*
Weaknesses
CWE IDTypeSource
CWE-22Primarysecurity-advisories@github.com
CWE ID: CWE-22
Type: Primary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91security-advisories@github.com
Patch
https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9security-advisories@github.com
Patch
https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2security-advisories@github.com
Exploit
Mitigation
Vendor Advisory
https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76security-advisories@github.com
Patch
Hyperlink: https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2
Source: security-advisories@github.com
Resource:
Exploit
Mitigation
Vendor Advisory
Hyperlink: https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76
Source: security-advisories@github.com
Resource:
Patch
Change History
0Changes found

Details not found