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TI-2026-82258 Aliases CVE-2026-118590GHSA-5v4h-cwmw-rr9x

Uncontrolled memory allocation in nipy nibabel array_from_file

Priority LOW 37CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

nipy nibabel up to 5.4.2 is affected, including versions 5.4.0, 5.4.1 and 5.4.2. The array_from_file function in nibabel/volumeutils.py performs memory allocation without controlling the size value (CWE-789). A remote attacker without privileges or user interaction can drive excessive memory allocation and reduce the availability of the affected system.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A security vulnerability has been detected in nipy nibabel up to 5.4.2. The affected element is the function array_from_file of the file nibabel/volumeutils.py of the component Header Handler. The manipulation leads to uncontrolled memory allocation. The attack is possible to be carried out remotely. The pull request to fix this issue awaits acceptance.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00419 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
nipynibabel5.4.0; 5.4.1; 5.4.2—No fix listedCNA
  • nibabel Vendornipy Affected 5.4.0; 5.4.1; 5.4.2 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:nipy:nibabel:*:*:*:*:*:*:*:*——nipy
  • cpe:2.3:a:nipy:nibabel:*:*:*:*:*:*:*:* Versions — — ·nipy

Remediation

The sources list no fixed version for nipy nibabel.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-118590
  2. 2026-10-29 Alias added: GHSA-5v4h-cwmw-rr9x
  3. 2026-10-30 Priority changed: MEDIUM → LOW
  4. 2026-11-04 CISA SSVC decision points changed
  5. 2026-11-06 Affected versions changed · Red Hat
  6. 2026-11-06 CVSS score added · Red Hat

References

Patch 1

Other 2

Sources

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