Bug 2496456 - CVE-2026-47262 docker-buildkit: containerd: Denial of Service via maliciously crafted image leading to unbounded group parsing [fedora-all]
Summary: CVE-2026-47262 docker-buildkit: containerd: Denial of Service via maliciously...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: docker-buildkit
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Brad Smith
QA Contact:
URL:
Whiteboard: {"flaws": ["93373801-a3ad-4635-83bf-8...
Depends On:
Blocks: CVE-2026-47262
TreeView+ depends on / blocked
 
Reported: 2026-07-02 10:38 UTC by jkelly
Modified: 2026-08-03 16:56 UTC (History)
3 users (show)

Fixed In Version: docker-buildkit-0.32.1-1.fc45
Clone Of:
Environment:
Last Closed: 2026-08-03 16:34:14 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description jkelly 2026-07-02 10:38:36 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

containerd is an open-source container runtime. Versions prior to 1.7.33, 2.0.10, 2.1.9, 2.2.5 and 2.3.2, contain a vulnerability that allows a maliciously crafted image to cause a Denial of Service (DoS) condition. When creating a container from this image, memory exhaustion occurs, leading to an Out Of Memory (OOM) kill of the containerd process. This renders the container runtime API unavailable and can disrupt clients such as the Docker Engine or Kubernetes control-plane components. This issue has been fixed in versions 1.7.33, 2.0.10, 2.1.9, 2.2.5 and 2.3.2.

Comment 1 Brad Smith 2026-08-03 16:34:14 UTC
govulncheck

=== Symbol Results ===

No vulnerabilities found.

=== Package Results ===

No other vulnerabilities found.

=== Module Results ===

Vulnerability #1: GO-2026-5932
    The golang.org/x/crypto/openpgp package is unmaintained, unsafe by design,
    and has known security issues
  More info: https://pkg.go.dev/vuln/GO-2026-5932
  Module: golang.org/x/crypto
    Found in: golang.org/x/crypto.0
    Fixed in: N/A

Your code is affected by 0 vulnerabilities.
This scan also found 0 vulnerabilities in packages you import and 1
vulnerability in modules you require, but your code doesn't appear to call these
vulnerabilities.

Comment 2 Fedora Update System 2026-08-03 16:50:47 UTC
FEDORA-2026-26c0a0ee30 (docker-buildkit-0.32.1-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-26c0a0ee30

Comment 3 Fedora Update System 2026-08-03 16:56:23 UTC
FEDORA-2026-26c0a0ee30 (docker-buildkit-0.32.1-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.


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