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CVE-2026-55175

Spinnaker: Improper yaml processing on kustomize bake operations

HIGH
7.5
CVSS Score
Published: July 10, 2026 at 09:52 PM UTC
Updated: July 21, 2026 at 07:36 PM UTC
2 products affected across 2 vendorsSpinnakerSpinnaker

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spinnaker· Linuxfoundation
95%
2025.3.0 ≤ v < 2025.3.42025.4.0 ≤ v < 2025.4.42026.0.0 ≤ v < 2026.0.32026.1.0 ≤ v < 2026.1.1
Affected range stops below 2025.3.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2025.4.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2026.0.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 2026.1.1, so it looks safe — our inference, not a vendor statement
Spinnaker· Spinnaker
60%
v < 2025.3.4v < 2025.4.4v < 2026.0.3v < 2026.1.1
Affected range stops below 2025.3.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2025.4.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2026.0.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 2026.1.1, so it looks safe — our inference, not a vendor statement

References (11)

x_refsource_CONFIRMThird Party Advisory
Source: cverecord
https://github.com/spinnaker/spinnaker/security/advisories/GHSA-p68j-q7hf-3qcp
x_refsource_MISCPatch
Source: cverecord
https://github.com/spinnaker/spinnaker/commit/2d75818b85cc4c35144d5e5ed45e7340fcab5dfe
x_refsource_MISCPatch
Source: cverecord
https://github.com/spinnaker/spinnaker/commit/bbc30c9b9034a056e95f012fa1b34e9fd703cae7
x_refsource_MISCPatch
Source: cverecord
https://github.com/spinnaker/spinnaker/commit/de5a7a05af35aee19eb71d289cd0b77f67509009
x_refsource_MISCPatch
Source: cverecord
https://github.com/spinnaker/spinnaker/commit/df32d568e82519d9f3896fc9007baba0077c87fd
x_refsource_MISCPatch
Source: cverecord
https://github.com/spinnaker/spinnaker/commit/f5cec213f8cf207843ed5a6929395960a1ca094f
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/spinnaker/spinnaker/releases/tag/rosco-2025.3.4
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/spinnaker/spinnaker/releases/tag/rosco-2025.4.4

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-502

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