How severe is CVE-2026-53489?

CVE-2026-53489 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-53489 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-53489?

CVE-2026-53489 affects Linuxfoundation Containerd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-53489?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-53489 published?

CVE-2026-53489 was published on 2026-07-01 and last updated on 2026-07-02.

CVE-2026-53489

CVE-2026-53489 is a medium-severity vulnerability in Linuxfoundation Containerd with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-61.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 8.2
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-61
Affected product: Linuxfoundation Containerd
Published: 2026-07-01
Last modified: 2026-07-02

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.

Frequently asked questions

What is CVE-2026-53489?: 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.
How severe is CVE-2026-53489?: CVE-2026-53489 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-53489 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-53489?: CVE-2026-53489 affects Linuxfoundation Containerd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-53489?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-53489 published?: CVE-2026-53489 was published on 2026-07-01 and last updated on 2026-07-02.

References

https://github.com/containerd/containerd/security/advisories/GHSA-rgh6-rfwx-v388

Affected products (1)

cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:*

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