TI-2021-13284 Aliases CVE-2021-34141 GHSA-fpfv-jqm9-f5jm

An incomplete string comparison in the numpy.core component in NumPy before 1.22.0 allows…

LOW 33CWE-697Published 2021-12-17 · Updated 2026-10-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.

Summary

An incomplete string comparison in the numpy.core component in NumPy before 1.22.0 allows attackers to trigger slightly incorrect copying by constructing specific string objects. NOTE: the vendor states that this reported code behavior is "completely harmless."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01679 77th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial numpy (PyPI): 1.22Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA
—	numpy (PyPI)	before 1.22	1.22	Patch available	GHSA-fpfv-jqm9-f5jm

— Vendor— Affected all versions Fixed in — No fix listed CNA
numpy (PyPI) Vendor— Affected before 1.22 Fixed in 1.22 Patch available GHSA-fpfv-jqm9-f5jm

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:numpy:numpy::::::::	before 1.22.0	Vulnerable	Numpy
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.1.3:::::::*	22.1.3	Vulnerable	Oracle

cpe:2.3:a:numpy:numpy:*:*:*:*:*:*:*:* Versions before 1.22.0 Vulnerable ·Numpy
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.1.3:*:*:*:*:*:*:* Versions 22.1.3 Vulnerable ·Oracle

Remediation

Fix · GHSA-fpfv-jqm9-f5jm numpy (PyPI) Fixed in 1.22 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix planned: Will not fix
Red Hat Software Collections	Affected	No fix yet: Fix deferred

Not affected: 6 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat OpenStack Platform 13 (Queens)
Red Hat OpenStack Platform 16.1
Red Hat OpenStack Platform 16.2
Red Hat Software Collections

Timeline

2026-10-02 Threatist record created from CVE-2021-34141
2026-10-03 Alias added: GHSA-fpfv-jqm9-f5jm
2026-10-08 CISA SSVC decision points changed

References

Exploit 1

https://github.com/numpy/numpy/issues/18993

Patch 1

https://www.oracle.com/security-alerts/cpujul2022.html

Advisory 2

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences