Session authentication bypass in Coral Server session creation endpoint
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Coral Server is open collaboration infrastructure that enables communication, coordination, trust and payments for The Internet of Agents. Prior to 1.1.0, Coral Server allowed the creation of agent sessions through the /api/v1/sessions endpoint without strong authentication. This endpoint performs resource-intensive initialization operations including container spawning and memory context creation. An attacker capable of accessing the endpoint could create sessions or consume system resources without proper authorization. This vulnerability is fixed in 1.1.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| Coral-Protocol | coral-server | before 1.1.0 | 1.1.0 | Patch available | CNA |
- coral-server VendorCoral-Protocol Affected before 1.1.0 Fixed in 1.1.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:coralos:coral_server:*:*:*:*:*:*:*:* | before 1.1.0 | Vulnerable | Coral-Protocol |
- cpe:2.3:a:coralos:coral_server:*:*:*:*:*:*:*:* Versions before 1.1.0 Vulnerable ·Coral-Protocol
Remediation
- Fix · CNA coral-server (Coral-Protocol) Fixed in 1.1.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30970
References
More Coral-Protocol Coral Server vulnerabilities
- TI-2026-23793 Coral Server has insufficient validation of agent identity for SSE connections CVSS 4.0HIGH 8.6
- TI-2026-23794 Coral Server has insufficient agent authentication in session communication channels CVSS 4.0HIGH 7.6
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences