How severe is CVE-2026-26055?

CVE-2026-26055 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-26055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26055?

CVE-2026-26055 affects Yokecd Yoke. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-26055?

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-2026-26055 have an EU (EUVD) identifier?

Yes. CVE-2026-26055 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6190.

When was CVE-2026-26055 published?

CVE-2026-26055 was published on 2026-02-12 and last updated on 2026-06-17.

CVE-2026-26055

CVE-2026-26055 is a high-severity vulnerability in Yokecd Yoke with a CVSS 3.x base score of 7.5. 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6190
Weakness: CWE-306
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. The ATC webhook endpoints lack proper authentication mechanisms, allowing any pod within the cluster network to directly send AdmissionReview requests to the webhook, bypassing Kubernetes API Server authentication. This enables attackers to trigger WASM module execution in the ATC controller context without proper authorization.

Frequently asked questions

What is CVE-2026-26055?: 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. The ATC webhook endpoints lack proper authentication mechanisms, allowing any pod within the cluster network to directly send AdmissionReview requests to the webhook, bypassing Kubernetes API Server authentication. This enables attackers to trigger WASM module execution in the ATC controller context without proper authorization.
How severe is CVE-2026-26055?: CVE-2026-26055 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-26055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26055?: CVE-2026-26055 affects Yokecd Yoke. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-26055?: 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-2026-26055 have an EU (EUVD) identifier?: Yes. CVE-2026-26055 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6190.
When was CVE-2026-26055 published?: CVE-2026-26055 was published on 2026-02-12 and last updated on 2026-06-17.

References

https://github.com/yokecd/yoke/security/advisories/GHSA-965m-v4cc-6334

Affected products (1)

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

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