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Vulnerability record · CVE-2026-55175 · published 10 July 2026

CVE-2026-55175: Linuxfoundation spinnaker deserialization of untrusted data vulnerability

Linuxfoundation · Spinnaker

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.

7.5 CVSS 3.1 High EPSS 1.1% · top 36.9% CWE-502 · Deserialization of untrusted data
7.5CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
11References
21 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/spinnaker/spinnaker/commit/2d75818b85cc4c35144d5e5ed45e7340fcab5dfe Patch
https://github.com/spinnaker/spinnaker/commit/bbc30c9b9034a056e95f012fa1b34e9fd703cae7 Patch
https://github.com/spinnaker/spinnaker/commit/de5a7a05af35aee19eb71d289cd0b77f67509009 Patch
https://github.com/spinnaker/spinnaker/commit/df32d568e82519d9f3896fc9007baba0077c87fd Patch
https://github.com/spinnaker/spinnaker/commit/f5cec213f8cf207843ed5a6929395960a1ca094f Patch
https://github.com/spinnaker/spinnaker/releases/tag/rosco-2025.3.4 Release Notes
https://github.com/spinnaker/spinnaker/releases/tag/rosco-2025.4.4 Release Notes
https://github.com/spinnaker/spinnaker/releases/tag/rosco-2026.0.3 Release Notes
https://github.com/spinnaker/spinnaker/releases/tag/rosco-2026.1.1 Release Notes
https://github.com/spinnaker/spinnaker/releases/tag/rosco-2026.2.0 Release Notes
https://github.com/spinnaker/spinnaker/security/advisories/GHSA-p68j-q7hf-3qcp Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-55175), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.