CVE-2026-44795 (GCVE-0-2026-44795)

Vulnerability from cvelistv5 – Published: 2026-07-10 21:49 – Updated: 2026-07-10 21:49
VLAI
Title
Spinnaker: Non-safe yaml deserialization allowing RCE when using specific types
Summary
Spinnaker is an open source, multi-cloud continuous delivery platform. Prior to 2026.1.0, 2026.0.3, 2025.4.4, and 2025.3.3, unsafe YAML processing bypasses safe deserialization when using CloudFormation deployments or CloudFoundry baking. The use of a non-safe constructor allows arbitrary loading of Java classes, leading to remote code execution. This issue is fixed in versions 2026.1.0, 2026.0.3, 2025.4.4, and 2025.3.3.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version
spinnaker spinnaker Affected: >= 2025.4.0, < 2025.4.4
Affected: >= 2026.0.0, < 2026.0.3
Affected: < 2025.3.3
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          "product": "spinnaker",
          "vendor": "spinnaker",
          "versions": [
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              "version": "\u003e= 2025.4.0, \u003c 2025.4.4"
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            },
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        }
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        "shortName": "GitHub_M"
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          "tags": [
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          "url": "https://github.com/spinnaker/spinnaker/security/advisories/GHSA-c8q4-9h32-2ww8"
        },
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          "tags": [
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          "url": "https://github.com/spinnaker/spinnaker/commit/4cbe1d5fea9df573aadfd8b093fb4b594b354ee5"
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          "tags": [
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      "source": {
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        "discovery": "UNKNOWN"
      },
      "title": "Spinnaker: Non-safe yaml deserialization allowing RCE when using specific types"
    }
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    "datePublished": "2026-07-10T21:49:27.287Z",
    "dateReserved": "2026-05-07T19:20:44.693Z",
    "dateUpdated": "2026-07-10T21:49:27.287Z",
    "state": "PUBLISHED"
  },
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.