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CVE-2026-53489— containerd: Arbitrary host CRI log file read via symlink following in CRI checkpoint restore

Quick assessment

Affected
containerd containerd
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

containerd containerd是containerd团队的一款容器运行环境软件。 containerd 2.3.2之前版本、2.2.5之前版本和2.1.9之前版本存在后置链接漏洞，该漏洞源于CRI plugin从检查点镜像恢复container.log时未验证符号链接路径，可能导致通过kubectl logs读取主机上的任意文件。

AI Predicted 6.5 Difficulty: Easy EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 3

VendorProduct Version RangeStatus
containerd containerd >= 2.1.0, < 2.1.9 affected
>= 2.2.0, < 2.2.5 affected
>= 2.3.0, < 2.3.2 affected
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I. Basic Information for CVE-2026-53489

Vulnerability Information
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Vulnerability Title
containerd: Arbitrary host CRI log file read via symlink following in CRI checkpoint restore
Source: CVE Program / CVE List V5
Vulnerability Description
containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a bug where the CRI plugin restores container.log from a checkpoint image without validating a symlinked path. This could result in reading an arbitrary file on the host via kubectl logs. This issue has been fixed in versions 2.3.2, 2.2.5 and 2.1.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
containerd 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
containerd containerd是containerd团队的一款容器运行环境软件。 containerd 2.3.2之前版本、2.2.5之前版本和2.1.9之前版本存在后置链接漏洞，该漏洞源于CRI plugin从检查点镜像恢复container.log时未验证符号链接路径，可能导致通过kubectl logs读取主机上的任意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
containerd containerd >= 2.1.0, < 2.1.9 -

II. Public POCs for CVE-2026-53489

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III. Intelligence Information for CVE-2026-53489

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Vendor Advisories for CVE-2026-53489 (1)

Same Patch Batch · containerd · 2026-07-01 · 6 CVEs total

CVE-2026-53488 containerd CRI plugin: — image-config `LABEL` flows to restart-monitor `binary://` logger:
CVE-2026-53492 containerd CRI checkpoint restore CDI annotation smuggling
CVE-2026-47262 containerd image-triggered runtime DoS via unbounded group parsing
CVE-2026-50195 containerd: CRI checkpoint import allows local image tag poisoning
CVE-2026-46680 containerd user ID handling bypass allows runAsNonRoot evasion

IV. Related Vulnerabilities

Same product: containerd
Same vendor: containerd
Same weakness: CWE-61

V. Comments for CVE-2026-53489

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