How severe is CVE-2026-55175?

CVE-2026-55175 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-55175 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-55175?

CVE-2026-55175 affects Linuxfoundation Spinnaker. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-55175?

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.

When was CVE-2026-55175 published?

CVE-2026-55175 was published on 2026-07-10 and last updated on 2026-07-21.

CVE-2026-55175

CVE-2026-55175 is a high-severity vulnerability in Linuxfoundation Spinnaker 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Linuxfoundation Spinnaker
Published: 2026-07-10
Last modified: 2026-07-21

Description

Spinnaker is an open source, multi-cloud continuous delivery platform. Prior to versions 2026.1.1, 2026.0.3, 2025.4.4, and 2025.3.4 on their respective release lines, Kustomize bake operations allow unsafe YAML tag processing in rosco manifests. This can lead to remote code execution on rosco pods when performing Kustomize bakes. This issue is fixed in versions 2026.1.1, 2026.0.3, 2025.4.4, and 2025.3.4.

Frequently asked questions

What is CVE-2026-55175?: Spinnaker is an open source, multi-cloud continuous delivery platform. Prior to versions 2026.1.1, 2026.0.3, 2025.4.4, and 2025.3.4 on their respective release lines, Kustomize bake operations allow unsafe YAML tag processing in rosco manifests. This can lead to remote code execution on rosco pods when performing Kustomize bakes. This issue is fixed in versions 2026.1.1, 2026.0.3, 2025.4.4, and 2025.3.4.
How severe is CVE-2026-55175?: CVE-2026-55175 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-55175 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-55175?: CVE-2026-55175 affects Linuxfoundation Spinnaker. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-55175?: 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.
When was CVE-2026-55175 published?: CVE-2026-55175 was published on 2026-07-10 and last updated on 2026-07-21.

References

Affected products (1)

cpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:*

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