Path traversal in ServiceStack
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
ServiceStack FindType Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ServiceStack. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the implementation of the FindType method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25837.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ServiceStack | ServiceStack | 8.4.0 | — | No fix listed | CNA |
- ServiceStack VendorServiceStack Affected 8.4.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:servicestack:servicestack:*:*:*:*:*:*:*:* | before 8.6 | Vulnerable | ServiceStack |
- cpe:2.3:a:servicestack:servicestack:*:*:*:*:*:*:*:* Versions before 8.6 Vulnerable ·ServiceStack
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-6445
- 2026-10-03 Alias added: GHSA-5r4f-7fg6-r3hw
References
Advisory 2
More Servicestack vulnerabilities
- TI-2020-17068 ServiceStack before 5.9.2 mishandles JWT signature verification unless an application has… CVSS 3.1MEDIUM 5.3
- TI-2019-16015 Cross-site scripting in ServiceStack Framework CVSS 3.0MEDIUM 6.1
- TI-2025-05845 Improper input validation in ServiceStack CVSS 3.1MEDIUM 5.9
Sources
- CVE-2025-6445 · CVE Program
- CVE-2025-6445 · NVD
- FIRST EPSS
- GHSA-5r4f-7fg6-r3hw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences