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Vulnerability record · CVE-2026-44795 · published 10 July 2026

CVE-2026-44795: Linuxfoundation spinnaker deserialization of untrusted data vulnerability

Linuxfoundation · Spinnaker

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.

8.8 CVSS 3.1 High EPSS 1.0% · top 38.3% CWE-470 · CWE-470CWE-502 · Deserialization of untrusted data
8.8CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
21 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/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/4cbe1d5fea9df573aadfd8b093fb4b594b354ee5 Patch
https://github.com/spinnaker/spinnaker/commit/e57c0db4584b398473a7bbb19402ce6c1e89b627 Patch
https://github.com/spinnaker/spinnaker/commit/f69d7b534d068ed74d0d3a1fbf17e2c945d36e5e Patch
https://github.com/spinnaker/spinnaker/security/advisories/GHSA-c8q4-9h32-2ww8 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-44795), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.