In Oraios AI Serena before 1.0.0, the listen address of the MCP server in HTTP mode is…
Priority MEDIUM 48CWE-669Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In Oraios AI Serena before 1.0.0, the listen address of the MCP server in HTTP mode is 0.0.0.0. NOTE: the Supplier observed that 0.0.0.0 was a "potential security hazard" but the Serena documentation, at the time of the issue report proposing 127.0.0.1 instead of 0.0.0.0, recommended "use a sandboxed environment for running Serena."
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00157 4th percentileScored 2026-11-08
Fix Fixed Serena (Oraios AI): 1.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Serena (Oraios AI) Fixed in 1.0.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-38924
- 2026-10-03 Alias added: GHSA-gx4x-gc82-v87q
References
Other 5
- https://github.com/oraios/serena/commit/b00ae292ac2d49947506886f44eb1cad7b7d7cd1
- https://github.com/oraios/serena/security/advisories/GHSA-m922-r24v-6wff
- https://dash.security/blog/cve-2026-38924-unauthenticated-rce-in-the-serena-mcp-server
- https://github.com/oraios/serena/compare/v0.1.4...v1.0.0
- https://github.com/oraios/serena/commit/a7af5c1f8a9ea27102eac9e72f64dd97dbfefff3
More Oraios AI vulnerabilities
- TI-2026-36626 Serena: Unauthenticated Flask dashboard on fixed port enables DNS rebinding → memory poisoning → RCE CVSS 3.1HIGH 8.3
Sources
- CVE-2026-38924 · CVE Program
- CVE-2026-38924 · NVD
- FIRST EPSS
- GHSA-gx4x-gc82-v87q · GitHub Advisory Database · CC BY 4.0
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