How severe is CVE-2026-26056?

CVE-2026-26056 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-26056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26056?

CVE-2026-26056 affects Yokecd Yoke. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-26056?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-26056 have an EU (EUVD) identifier?

Yes. CVE-2026-26056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6191.

When was CVE-2026-26056 published?

CVE-2026-26056 was published on 2026-02-12 and last updated on 2026-06-17.

CVE-2026-26056

CVE-2026-26056 is a high-severity vulnerability in Yokecd Yoke with a CVSS 3.x base score of 8.8. 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-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6191
Weakness: CWE-94
Affected product: Yokecd Yoke
Published: 2026-02-12
Last modified: 2026-06-17

Description

Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. It allows users with CR create/update permissions to execute arbitrary WASM code in the ATC controller context by injecting a malicious URL through the overrides.yoke.cd/flight annotation. The ATC controller downloads and executes the WASM module without proper URL validation, enabling attackers to create arbitrary Kubernetes resources or potentially escalate privileges to cluster-admin level.

Frequently asked questions

What is CVE-2026-26056?: Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. It allows users with CR create/update permissions to execute arbitrary WASM code in the ATC controller context by injecting a malicious URL through the overrides.yoke.cd/flight annotation. The ATC controller downloads and executes the WASM module without proper URL validation, enabling attackers to create arbitrary Kubernetes resources or potentially escalate privileges to cluster-admin level.
How severe is CVE-2026-26056?: CVE-2026-26056 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-26056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26056?: CVE-2026-26056 affects Yokecd Yoke. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-26056?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-26056 have an EU (EUVD) identifier?: Yes. CVE-2026-26056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6191.
When was CVE-2026-26056 published?: CVE-2026-26056 was published on 2026-02-12 and last updated on 2026-06-17.

References

https://github.com/yokecd/yoke/security/advisories/GHSA-wj8p-jj64-h7ff

Affected products (1)

cpe:2.3:a:yokecd:yoke:*:*:*:*:*:*:*:*

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