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Vulnerability record · CVE-2026-25534 · published 17 March 2026

CVE-2026-25534: Server-side request forgery (SSRF) vulnerability

### Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE (CVE-2025-61916) through the use of carefully crafted URLs. Note, Spinnaker found this not just in that CVE, but in the existing URL validations in Orca fromUrl expression handling. This CVE impacts BOTH artifacts as a result. ### Patches This has been merged and will be available in versions 2025.4.1, 2025.3.1, 2025.2.4 and 2026.0.0. ### Workarounds You can disable the various artifacts on this system to work around these limits.

9.1 CVSS 3.1 Critical EPSS 0.40% · top 67.9% CWE-918 · Server-side request forgery (SSRF) Deferred
9.1CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

### Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE (CVE-2025-61916) through the use of carefully crafted URLs. Note, Spinnaker found this not just in that CVE, but in the existing URL validations in Orca fromUrl expression handling. This CVE impacts BOTH artifacts as a result. ### Patches This has been merged and will be available in versions 2025.4.1, 2025.3.1, 2025.2.4 and 2026.0.0. ### Workarounds You can disable the various artifacts on this system to work around these limits.

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

References

LinkTags
https://github.com/spinnaker/spinnaker/commit/7c4737906239a958a468e843239c6785b03d0eda
https://github.com/spinnaker/spinnaker/security/advisories/GHSA-8r8j-gfhg-fw38
https://github.com/spinnaker/spinnaker/security/advisories/GHSA-vrjc-q2fh-6x9h

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Source: NIST National Vulnerability Database (record CVE-2026-25534), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.