CVE-2026-25534 (GCVE-0-2026-25534)
Vulnerability from cvelistv5 – Published: 2026-03-17 17:27 – Updated: 2026-03-17 17:58
VLAI?
Title
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.
Severity ?
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
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Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| io.spinnaker.clouddriver | clouddriver-artifacts |
Affected:
< 2025.2.4
Affected: >= 2025.3.0, < 2025.3.1 Affected: >= 2025.4.0, < 2025.4.1 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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