What’s Vulnerable › Vulnerabilities

CVE-2026-30969: Coral Server has insufficient agent authentication in session communication channels

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-10 · updated 2026-06-17
• Weakness: CWE-639

Description

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 did not enforce strong authentication between agents and the server within an active session. This could allow an attacker who obtained or predicted a session identifier to impersonate an agent or join an existing session. This vulnerability is fixed in 1.1.0.

Affected products

• Coral-Protocol coral-server: before 1.1.0 — fixed in 1.1.0

How to fix

Upgrade to a fixed version: Coral-Protocol coral-server 1.1.0. Check the vendor advisory for mitigations.

References

• https://github.com/Coral-Protocol/coral-server/releases/tag/v1.1.0
• https://github.com/Coral-Protocol/coral-server/security/advisories/GHSA-ccx7-7wv9-c55x

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