CVE-2026-25534

CRITICAL

Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 9.1
EPSS 0.0005
EPSS Percentile 16.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-918
Status published
Products (8)
io.spinnaker.clouddriver/clouddriver-artifacts 0 - 2025.2.4Maven
io.spinnaker.clouddriver/clouddriver-artifacts < 2025.2.4
io.spinnaker.clouddriver/clouddriver-artifacts >= 2025.3.0, < 2025.3.1
io.spinnaker.clouddriver/clouddriver-artifacts >= 2025.4.0, < 2025.4.1
io.spinnaker.orca/orca-core 0 - 2025.2.4Maven
io.spinnaker.orca/orca-core < 2025.2.4
io.spinnaker.orca/orca-core >= 2025.3.0, < 2025.3.1
io.spinnaker.orca/orca-core >= 2025.4.0, < 2025.4.1
Published Mar 17, 2026
Tracked Since Mar 17, 2026