CVE-2026-8328 Affecting python-3.14 package, versions <3.14.5-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-PYTHON314-16732031
- published18 May 2026
- disclosed13 May 2026
Introduced: 13 May 2026
CVE-2026-8328 (opens in a new tab)How to fix?
Upgrade Minimos:latest python-3.14 to version 3.14.5-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-3.14 package and not the python-3.14 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189.
References
- https://www.cve.org/CVERecord?id=CVE-2026-8328
- https://github.com/advisories/GHSA-j989-fggp-qgp5
- https://osv.dev/vulnerability/MINI-6rhc-6fr5-fcjh
- https://osv.dev/vulnerability/CVE-2026-8328
- https://github.com/python/cpython/issues/87451
- https://github.com/python/cpython/pull/149648
- https://mail.python.org/archives/list/security-announce@python.org/thread/ITF2BAPBQEPYK3LDMPRSY435JGNHYNDP/
- https://github.com/python/cpython/commit/5dadc64673ce875ebfb24163907777dae0f6ca06
- https://github.com/python/cpython/commit/7d95a1dc7382b55cba7fdd6a110336077584a4f0
- https://github.com/python/cpython/commit/bb3446dda6c49b32e67c11dbbbf221b40be00763
- https://github.com/python/cpython/commit/c88704431ea3248ca769384c13856330976fac1d
- https://github.com/python/cpython/commit/eac4fe3b2c77693790a5ef7dfab127c1fee81bf9