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Jaraco.Context CVE-2026-23949

HIGH
Path Traversal (CWE-22)
2026-01-20 security-advisories@github.com GHSA-58pv-8j8x-9vj2
Path Traversal Jaraco.Context Red Hat Suse
8.6
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
8.6 HIGH
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
SUSE
HIGH
qualitative
Red Hat
8.6 HIGH
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Mar 11, 2026 - 23:12 vuln.today
Public exploit code
Patch released
Mar 11, 2026 - 23:12 nvd
Patch available
CVE Published
Jan 20, 2026 - 01:15 nvd
HIGH 8.6

DescriptionGitHub Advisory

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.

AnalysisAI

Jaraco.context versions 5.2.0 through 6.0.x contain a path traversal vulnerability in the tarball() function that allows attackers to extract files outside the intended directory when processing malicious tar archives, with public exploit code available. The vulnerability exploits insufficient path validation that fails to properly filter directory traversal sequences like ../, potentially enabling unauthorized file extraction and nested tarball attacks. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Craft malicious tar archive with path traversal sequences
Delivery
Upload or provide archive to application using jaraco.context.tarball()
Exploit
Path normalization strips first component leaving ../ sequences
Execution
Extract files outside intended directory
Impact
Access sensitive system files
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Vulnerability AssessmentAI

Exploitation Application must use jaraco.context.tarball() function from version 5.2.0 through 6.0.x to process untrusted tar archives. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.6 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this vulnerability to extract files outside the intended extraction directory when malicious tar archi.
Remediation A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 7 days: Identify all affected systems running version 5.2.0 and and apply vendor patches promptly. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

Vendor StatusVendor

SUSE

Severity: High
Product Status
Container suse/sl-micro/6.0/base-os-container:latest Container suse/sl-micro/6.0/toolbox:latest Container suse/sl-micro/6.1/base-os-container:2.2.1-5.10 Image SL-Micro Image SL-Micro-Azure Image SL-Micro-BYOS-Azure Image SL-Micro-BYOS-EC2 Image SL-Micro-BYOS-GCE Image SL-Micro-EC2 Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-Azure-llc Image SUSE-Multi-Linux-Manager-Server-Azure-ltd Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-EC2-llc Image SUSE-Multi-Linux-Manager-Server-EC2-ltd Affected
SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server for SAP applications 16.0 Fixed
openSUSE Leap 16.0 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Server 16.0 Affected

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CVE-2026-23949 vulnerability details – vuln.today
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