A weakness has been identified in nschloe meshio up to 5.3.5. Impacted is an unknown function of the file meshio/_vtk_42.py of the component VTK Reader. Executing a manipulation of the argument DIMENSIONS can lead to uncontrolled memory allocation. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
nschloe meshio affected
Version Status Constraints
5.3.0 affected —
5.3.1 affected —
5.3.2 affected —
5.3.3 affected —
5.3.4 affected —
5.3.5 affected —

No data.

No data.

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Project Subscriptions

Vendors Products
Nschloe Subscribe
Meshio Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/nschloe/meshio/ cve-icon cve-icon
https://github.com/nschloe/meshio/issues/1576 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-118589 cve-icon cve-icon
https://vuldb.com/submit/1026207 cve-icon cve-icon
https://vuldb.com/vuln/428027 cve-icon cve-icon
https://vuldb.com/vuln/428027/cti cve-icon cve-icon
History

Thu, 29 Oct 2026 00:00:00 +0000

Type Values Removed Values Added
Description A weakness has been identified in nschloe meshio up to 5.3.5. Impacted is an unknown function of the file meshio/_vtk_42.py of the component VTK Reader. Executing a manipulation of the argument DIMENSIONS can lead to uncontrolled memory allocation. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.
Title nschloe meshio VTK Reader _vtk_42.py memory allocation
First Time appeared Nschloe
Nschloe meshio
Weaknesses CWE-400
CWE-789
CPEs cpe:2.3:a:nschloe:meshio:*:*:*:*:*:*:*:*
Vendors & Products Nschloe
Nschloe meshio
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:ND/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-10-28T23:45:18.675Z

Reserved: 2026-10-28T16:17:16.147Z

Link: CVE-2026-118589

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-29T00:17:26.320

Modified: 2026-10-29T00:17:26.320

Link: CVE-2026-118589

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T01:30:09Z

Weaknesses