CVE-2026-3479 | Python CPython up to 3.14.x pkgutil.get_data resource path traversal

VDB-351594 · CVE-2026-3479 · GCVE-0-2026-3479 PYTHON CPYTHON UP TO 3.14.X PKGUTIL.GET_DATA RESOURCE PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 0.33+ Summaryinfo A vulnerability described as critical has been identified in Python CPython up to 3.14.x. Affected by this issue is the function pkgutil.get_data. The manipulation of the argument resource results in path traversal. This vulnerability is cataloged as CVE-2026-3479. The attack must be initiated from a local position. There is no exploit available. Upgrading the affected component is recommended. Detailsinfo A vulnerability classified as critical has been found in Python CPython up to 3.14.x. Affected is the function pkgutil.get_data. The manipulation of the argument resource with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals. The advisory is available at github.com. This vulnerability is traded as CVE-2026-3479 since 03/03/2026. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project. Upgrading to version 3.15.0 eliminates this vulnerability. Productinfo Type Programming Language Software Vendor Python Name CPython Version 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 License open-source Website Product: https://github.com/python/cpython/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Path traversal CWE: CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: CPython 3.15.0 Timelineinfo 03/03/2026 CVE reserved 03/18/2026 +15 days Advisory disclosed 03/18/2026 +0 days VulDB entry created 03/18/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-3479 (🔒) GCVE (CVE): GCVE-0-2026-3479 GCVE (VulDB): GCVE-100-351594 Entryinfo Created: 03/18/2026 20:01 Changes: 03/18/2026 20:01 (69) Complete: 🔍 Cache ID: 99:8F7:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸