CVE-2026-95838mediumCWE-400CWE-407

CVE-2026-95838: medium-severity vulnerability in containerd

containerd: Unpack DoS via repeated opaque whiteouts

Published · Updated

Follow this CVE+ Monitor containerd+ Monitor containerd

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.6epss 0.2%
containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd's layer unpack handler repeatedly traverses directories for certain opaque whiteout configurations. A malicious image layer can trigger repeated directory traversals while opaque whiteouts are processed. Pulling or importing the image can consume CPU, delay container startup, and reduce image-pull concurrency for unrelated deployments. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
containerd · containerd
Related CVEs — containerd

In the same product, most dangerous first.

CVE-2022-23648HIGHInsecure handling of image volumes in containerd CRI pluginEPSS 27.4%CVE-2020-15257MEDIUMcontainerd-shim API Exposed to Host Network ContainersEPSS 3.1%CVE-2020-15157MEDIUMcontainerd can be coerced into leaking credentials during image pullEPSS 2.3%CVE-2021-21334MEDIUMenvironment variable leakEPSS 1.9%CVE-2021-43816HIGHImproper Preservation of Permissions in containerdEPSS 1.8%CVE-2021-32760MEDIUMArchive package allows chmod of file outside of unpack target directoryEPSS 1.6%