CVE-2026-107446

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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/image_file.cpp
https://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/overlaybd/lsmt/file.cpp
https://github.com/containerd/overlaybd/commit/a536e3341c82517268b5ce32375b36faecb1fb40
https://github.com/containerd/overlaybd/commit/d80c1790920a17e84da025675530624aee753f1b
https://github.com/containerd/overlaybd/pull/438

Configurations

No configuration.

History

08 Oct 2026, 04:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 04:17

Updated : 2026-10-08 21:33

NVD link : CVE-2026-107446

Mitre link : CVE-2026-107446

CVE.ORG link : CVE-2026-107446

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

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