CVE-2026-3479
CVE-2026-3479 is a none-severity vulnerability with a CVSS 4.0 base score of 0.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: None (CVSS 4.0 base score 0.0)
- EPSS exploit prediction: 0% (15th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-12940
- Weakness: CWE-22
- Published:
- Last modified:
Description
DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model. pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.
Frequently asked questions
- What is CVE-2026-3479?
- DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model. pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.
- How severe is CVE-2026-3479?
- CVE-2026-3479 has a CVSS 4.0 base score of 0.0, rated none severity.
- Is CVE-2026-3479 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-3479?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-3479 have an EU (EUVD) identifier?
- Yes. CVE-2026-3479 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12940.
- When was CVE-2026-3479 published?
- CVE-2026-3479 was published on 2026-03-18 and last updated on 2026-06-17.
References
- https://github.com/python/cpython/commit/5af6ce3e7b643a30a02d22245c1e3f4a8bc0a1fe
- https://github.com/python/cpython/commit/bcdf231946b1da8bdfbab4c05539bb0cc964a1c7
- https://github.com/python/cpython/commit/cf59bf76470f3d75ad47d80ffb8ce76b64b5e943
- https://github.com/python/cpython/commit/d786d59a8f7196bb630100a869f28ad13436b59c
- https://github.com/python/cpython/issues/146121
- https://github.com/python/cpython/pull/146122
- https://mail.python.org/archives/list/[email protected]/thread/WYLLVQOOCKGK73JM7Z7ZSNOJC4N7BAWY/
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