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TI-2022-07531 Aliases CVE-2022-23471GHSA-2qjp-425j-52j9

containerd CRI stream server: Host memory exhaustion through terminal resize goroutine leak

Priority LOW 31CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

containerd is an open source container runtime. A bug was found in containerd's CRI implementation where a user can exhaust memory on the host. In the CRI stream server, a goroutine is launched to handle terminal resize events if a TTY is requested. If the user's process fails to launch due to, for example, a faulty command, the goroutine will be stuck waiting to send without a receiver, resulting in a memory leak. Kubernetes and crictl can both be configured to use containerd's CRI implementation and the stream server is used for handling container IO. This bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01109 66th percentileScored 2026-11-07
Fix Fixed containerd (containerd): 1.5.16, 1.6.12github.com/containerd/containerd (Go): 1.5.16, 1.6.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
backstagecontainerdbefore 1.5.16; 1.6.0 to before 1.6.121.5.16, 1.6.12Patch availableCNA
—github.com/containerd/containerd (Go)before 1.5.161.5.16Patch availableGHSA-2qjp-425j-52j9
—github.com/containerd/containerd (Go)1.6.0 to before 1.6.121.6.12Patch availableGHSA-2qjp-425j-52j9
  • containerd Vendorbackstage Affected before 1.5.16; 1.6.0 to before 1.6.12 Fixed in 1.5.16, 1.6.12 Patch available CNA
  • github.com/containerd/containerd (Go) Vendor— Affected before 1.5.16 Fixed in 1.5.16 Patch available GHSA-2qjp-425j-52j9
  • github.com/containerd/containerd (Go) Vendor— Affected 1.6.0 to before 1.6.12 Fixed in 1.6.12 Patch available GHSA-2qjp-425j-52j9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:*before 1.5.16; 1.6.0 to before 1.6.12Vulnerablebackstage
  • cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* Versions before 1.5.16; 1.6.0 to before 1.6.12 Vulnerable ·backstage

Remediation

  • Fix · CNA containerd (containerd) Fixed in 1.5.16, 1.6.12
  • Fix · GHSA-2qjp-425j-52j9 github.com/containerd/containerd (Go) Fixed in 1.5.16 Advisory →
  • Fix · GHSA-2qjp-425j-52j9 github.com/containerd/containerd (Go) Fixed in 1.6.12 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-23471
  2. 2026-10-03 Alias added: GHSA-2qjp-425j-52j9

References

Patch 1

Advisory 2

Other 5

  • TI-2021-19622 Improper Preservation of Permissions in containerd CVSS 3.1CRITICAL 9.1
  • TI-2023-10635 containerd supplementary groups are not set up properly CVSS 3.1HIGH 7.8
  • TI-2022-07700 Insecure handling of image volumes in containerd CRI plugin CVSS 3.1HIGH 7.5
  • TI-2026-38567 Improper input validation in backstage containerd CVSS 4.0CRITICAL 9.4
  • TI-2026-38569 containerd CRI checkpoint restore CDI annotation smuggling CVSS 4.0HIGH 8.4
  • TI-2025-29820 Containerd vulnerable to host filesystem access during image unpack CVSS 4.0HIGH 7.6
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences