Critical 9.1Published Mar 17, 2026

CVE-2026-25534Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Updated under an hour ago (Oct 27, 2026, 4:40 AM ET)

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It affects io.spinnaker.clouddriver clouddriver-artifacts and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for io.spinnaker.clouddriver clouddriver-artifacts

Exploited in the last 30 days

### 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.

CVSS: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Mar 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

io.spinnaker.clouddriver clouddriver-artifacts io.spinnaker.clouddriver:clouddriver_artifacts (from the name)	before 2025.2.4; from 2025.3.0, < 2025.3.1; from 2025.4.0, < 2025.4.1	CNA record
io.spinnaker.orca orca-core io.spinnaker.orca:orca_core (from the name)	before 2025.2.4; from 2025.3.0, < 2025.3.1; from 2025.4.0, < 2025.4.1	CNA record

References

References

https://github.com/spinnaker/spinnaker/security/advisories/GHSA-8r8j-gfhg-fw38	x-refsource-confirm
https://github.com/spinnaker/spinnaker/security/advisories/GHSA-vrjc-q2fh-6x9h	x-refsource-misc
https://github.com/spinnaker/spinnaker/commit/7c4737906239a958a468e843239c6785b03d0eda	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.