Vulnerability · Published Mar 10, 2026 · Assigned by GitHub_M

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

High 7.6

In plain English

A high-severity authorization bypass via user-controlled key in coral-server from Coral-Protocol. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 4.0)7.6High

Exploit odds (30 days)0.4%top 61.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Coral-Protocol	coral-server	< 1.1.0

Weakness: CWE-639 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References

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