CVE-2026-3479
What it is
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.
At a glance
- Exploitability
- Can be exploited with physical access without logging in. Limited direct impact.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 0.0 NONE (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-22 · Path traversal
- Record status
- Awaiting Analysis
Attack profile CVSS 4.0 · 0.0
- Attack vector
- Physical
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- None
- User interaction
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- None
Raw vector
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-3479.md and follow it. Check whether this project is affected by CVE-2026-3479. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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/pull/146122
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/