Containerd has image-pull DoS via crafted OCI index graph amplification
Description
A denial-of-service (DoS) vulnerability exists in Containerd version 3.0, triggered by a crafted OCI index graph amplification. This vulnerability could allow an attacker to cause resource exhaustion by exploiting the image-pull process.
Affected software
pkg:github/containerd/containerdRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-53493 describes a denial-of-service vulnerability in Containerd version 3.0. The issue arises from the handling of crafted OCI index graphs during image pulls, which can be amplified to exhaust system resources. This vulnerability is categorized under CWE-400 (Uncontrolled Resource Consumption). No CVSS score or detailed vendor advisory is provided, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could lead to denial of service by exhausting resources during image pulls, potentially disrupting container operations. There is no indication of privilege escalation or code execution from the available data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications for updates. No specific mitigation steps are documented at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-53493
- Cve Count
- 1
Threat ID: 6acaadcc2cdf04f656515637
Added to database: 10/10/2026, 21:27:40 UTC
Last enriched: 10/10/2026, 21:43:50 UTC
Last updated: 10/10/2026, 21:48:10 UTC
Views: 6
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