01 Record
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
MediumPUBLISHEDCNA: mitre
CNA base score6.8 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
02 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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.40% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 34.6% of scored records. A rank, not a probability.
- NVD base score
- 6.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-08.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-08 03:37Z21 DAYS AGO
- Last updated
- 2026-10-08 17:55Z20 DAYS AGO
- Reserved
- 2026-10-08
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.8)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-190Integer Overflow or WraparoundBase
- Data version
- 5.2
- Document digest
- cce482c466b1faa14eefa7d569854345fea32c781dfa9b88b9a1501fd72fe747
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/overlaybd/lsmt/file.cpp
- github.comhttps://github.com/containerd/overlaybd/blob/58f1508f4c841fe27da428f54d987000f7dae4de/src/image_file.cpp
- github.comhttps://github.com/containerd/overlaybd/pull/438
- github.comhttps://github.com/containerd/overlaybd/commit/a536e3341c82517268b5ce32375b36faecb1fb40
- github.comhttps://github.com/containerd/overlaybd/commit/d80c1790920a17e84da025675530624aee753f1b