How severe is CVE-2026-41184?

CVE-2026-41184 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-41184 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41184?

CVE-2026-41184 primarily affects Tigera Calico. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-41184?

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

Does CVE-2026-41184 have an EU (EUVD) identifier?

Yes. CVE-2026-41184 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32931.

When was CVE-2026-41184 published?

CVE-2026-41184 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-41184

CVE-2026-41184 is a medium-severity vulnerability in Tigera Calico 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-532.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.0
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32931
Weakness: CWE-532
Affected product: Tigera Calico
Published: 2026-05-28
Last modified: 2026-06-17

Description

In Calico, the install-cni init container logs the rendered CNI configuration to standard output. When the configuration template uses the __SERVICEACCOUNT_TOKEN__ placeholder (Canal/Flannel-Calico deployments), the installer substitutes the live Kubernetes ServiceAccount bearer token before logging, exposing the token to any authenticated user with pods/log permission in the namespace with calico-node. The token holds patch privileges on pods/status, enabling annotation-based attacks against cluster workloads. The default kubeconfig-based authentication path is not affected. This is a direct regression of TTA-2018-001.

Frequently asked questions

What is CVE-2026-41184?: In Calico, the install-cni init container logs the rendered CNI configuration to standard output. When the configuration template uses the __SERVICEACCOUNT_TOKEN__ placeholder (Canal/Flannel-Calico deployments), the installer substitutes the live Kubernetes ServiceAccount bearer token before logging, exposing the token to any authenticated user with pods/log permission in the namespace with calico-node. The token holds patch privileges on pods/status, enabling annotation-based attacks against cluster workloads. The default kubeconfig-based authentication path is not affected. This is a direct regression of TTA-2018-001.
How severe is CVE-2026-41184?: CVE-2026-41184 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-41184 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41184?: CVE-2026-41184 primarily affects Tigera Calico. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-41184?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-41184 have an EU (EUVD) identifier?: Yes. CVE-2026-41184 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32931.
When was CVE-2026-41184 published?: CVE-2026-41184 was published on 2026-05-28 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:tigera:calico:*:*:*:*:open_source:*:*:*
cpe:2.3:a:tigera:calico:*:*:*:*:cloud:*:*:*

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