GitHub Advisoryadvisory · Maven

GHSA-8r8j-gfhg-fw38 Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

CRITICAL Published 2026-03-16 Modified 2026-09-01 Official page ↗
Aliases
CVE-2026-25534
Ecosystem
Maven
Packages
io.spinnaker.clouddriver:clouddriver-artifacts, io.spinnaker.orca:orca-core
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Weaknesses
CWE-918
Reviewed
2026-03-16

Affected packages

• Maven io.spinnaker.clouddriver:clouddriver-artifacts: >= 2025.1.6, < 2025.2.4 → fixed in 2025.2.4 • Maven io.spinnaker.clouddriver:clouddriver-artifacts: >= 2025.3.0, < 2025.3.1 → fixed in 2025.3.1 • Maven io.spinnaker.clouddriver:clouddriver-artifacts: >= 2025.4.0, < 2025.4.1 → fixed in 2025.4.1 • Maven io.spinnaker.orca:orca-core: >= 2025.1.6, < 2025.2.4 → fixed in 2025.2.4 • Maven io.spinnaker.orca:orca-core: >= 2025.3.0, < 2025.3.1 → fixed in 2025.3.1 • Maven io.spinnaker.orca:orca-core: >= 2025.4.0, < 2025.4.1 → fixed in 2025.4.1

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.

Related

Alias · CVE (1)

  • CVE-2026-25534 ### Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. vulnerability

Weakness · CWE (1)

  • CWE-918 Server-Side Request Forgery weakness

References