Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Summary

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.

Timeline

1. Mar 17, 2026, 5:27 PM UTCCVE published
2. Mar 17, 2026, 5:48 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Mar 17, 2026, 5:58 PM UTCRecord last updated

Affected versions

• io.spinnaker.clouddriver clouddriver-artifacts

  fixed in 2025.2.4; From 2025.3.0 · fixed in 2025.3.1; From 2025.4.0 · fixed in 2025.4.1

• io.spinnaker.orca orca-core

  fixed in 2025.2.4; From 2025.3.0 · fixed in 2025.3.1; From 2025.4.0 · fixed in 2025.4.1

• io.spinnaker.clouddriver:clouddriver-artifactsMaven

  From 2025.1.6 · fixed in 2025.2.4

• io.spinnaker.clouddriver:clouddriver-artifactsMaven

  From 2025.3.0 · fixed in 2025.3.1

• io.spinnaker.clouddriver:clouddriver-artifactsMaven

  From 2025.4.0 · fixed in 2025.4.1

• io.spinnaker.orca:orca-coreMaven

  From 2025.1.6 · fixed in 2025.2.4

• io.spinnaker.orca:orca-coreMaven

  From 2025.3.0 · fixed in 2025.3.1

• io.spinnaker.orca:orca-coreMaven

  From 2025.4.0 · fixed in 2025.4.1

References 3