containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple overlaybd-backed containers.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

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
containerd overlaybd unknown
Version Status Constraints
0 affected ≤ 1.0.18

No data.

No data.

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Project Subscriptions

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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/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/image_file.cpp cve-icon cve-icon
https://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/overlaybd/lsmt/file.cpp cve-icon cve-icon
https://github.com/containerd/overlaybd/commit/a536e3341c82517268b5ce32375b36faecb1fb40 cve-icon cve-icon
https://github.com/containerd/overlaybd/commit/d80c1790920a17e84da025675530624aee753f1b cve-icon cve-icon
https://github.com/containerd/overlaybd/pull/438 cve-icon cve-icon
History

Thu, 08 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
Title Integer Overflow in LS‑MT Index Loading of containerd overlaybd

Thu, 08 Oct 2026 04:00:00 +0000

Type Values Removed Values Added
Description containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple overlaybd-backed containers.
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-08T03:37:19.484Z

Reserved: 2026-10-08T03:37:18.693Z

Link: CVE-2026-107446

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-08T04:17:19.410

Modified: 2026-10-08T04:17:19.410

Link: CVE-2026-107446

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T06:00:10Z

Weaknesses