๐Ÿ” CVE Alert

CVE-2026-25534

CRITICAL 9.1

Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th

### 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.

CWE CWE-918
Vendor io.spinnaker.clouddriver
Product clouddriver-artifacts
Published Mar 17, 2026
Last Updated Mar 17, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
Low

Affected Versions

io.spinnaker.clouddriver / clouddriver-artifacts
< 2025.2.4 >= 2025.3.0, < 2025.3.1 >= 2025.4.0, < 2025.4.1
io.spinnaker.orca / orca-core
< 2025.2.4 >= 2025.3.0, < 2025.3.1 >= 2025.4.0, < 2025.4.1

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/spinnaker/spinnaker/security/advisories/GHSA-8r8j-gfhg-fw38 github.com: https://github.com/spinnaker/spinnaker/security/advisories/GHSA-vrjc-q2fh-6x9h github.com: https://github.com/spinnaker/spinnaker/commit/7c4737906239a958a468e843239c6785b03d0eda