CVE-2026-107446

Published: Oct 8, 2026Modified: Oct 8, 2026

6.8

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Exploitability: 2.2 / Impact: 4.0

Source: MITRE (Secondary)

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.

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (5)

https://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/image_file.cpp

Source: cve@mitre.org

https://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/overlaybd/lsmt/file.cpp

Source: cve@mitre.org

https://github.com/containerd/overlaybd/commit/a536e3341c82517268b5ce32375b36faecb1fb40

Source: cve@mitre.org

https://github.com/containerd/overlaybd/commit/d80c1790920a17e84da025675530624aee753f1b

Source: cve@mitre.org

https://github.com/containerd/overlaybd/pull/438

Source: cve@mitre.org

Timeline

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