CVE-2019-6446

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 17.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-01-16 · updated 2026-06-17
Weakness: CWE-502

Description

An issue was discovered in NumPy before 1.16.3. It uses the pickle Python module unsafely, which allows remote attackers to execute arbitrary code via a crafted serialized object, as demonstrated by a numpy.load call. NOTE: third parties dispute this issue because it is a behavior that might have legitimate applications in (for example) loading serialized Python object arrays from trusted and authenticated sources.

Affected products

Fedoraproject Fedora: 30
Numpy: through 1.16.0

References

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00091.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00092.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00015.html
http://www.securityfocus.com/bid/106670
https://access.redhat.com/errata/RHSA-2019:3335
https://access.redhat.com/errata/RHSA-2019:3704
https://bugzilla.suse.com/show_bug.cgi?id=1122208
https://github.com/numpy/numpy/commit/89b688732b37616c9d26623f81aaee1703c30ffb
https://github.com/numpy/numpy/issues/12759
https://github.com/numpy/numpy/pull/12889
https://github.com/numpy/numpy/pull/13359
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZZAYIQNUUYXGMKHSPEEXS4TRYFOUYE4/

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