Is CVE-2026-25534 actively exploited?

No active exploitation of CVE-2026-25534 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-25534 be exploited remotely?

Yes. CVE-2026-25534 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-25534?

CVE-2026-25534 has a CVSS score of 9.1 (CRITICAL).

HOME VULNERABILITIESCVE-2026-25534

CRITICAL

CVE-2026-25534

CWE-918Published: March 17, 2026· Updated: Mar 18, 2026

9.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.2th

Official 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.

NVD Source

Technical Analysis

CVE-2026-25534 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 9.1.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.