CVE-2026-107446
containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and…
- Risk score
- 58/100
- CVSS
- 6.8 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 8 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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.
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.8 medium
- On your watchlist: containerd
References
- 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
Original 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.
Last activity 8 Oct 2026. Patch Forecast updates every hour.